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NAME

       atsar — system activity report

SYNOPSIS

       atsar [ -flags ] t [ n ]

       atsar [ -flags ] [ -s time ] [ -e time ] [ -i sec ] [ -f file | -n day#
       ]

DESCRIPTION

       The program atsar(1) can be used to deliver statistics.  The design  of
       this  program  can  be  compared  with  the standard sadc(1) and sar(1)
       programs being delivered for other UNIX-implementations, i.e.  a  data-
       collector  which  reads  the statistical counters (from the files under
       the directory /proc ) and  a  presentation-program  which  formats  the
       counters and presents them on stdout.

       In  the first synopsis line, atsar samples cumulative activity counters
       in the kernel at n intervals of t seconds,  where  t  should  be  1  or
       greater. The default value of n is 1.

       The  type of command shown in the first synopsis line immediately sends
       the output for every option specified to standard output.  If only  one
       type  of  statistical  counter is requested, the header is printed once
       and after every t seconds the statistical counters are shown  for  that
       period.  If  several  options  are  requested,  a header is printed per
       sample followed by the statistical counters for that period.

       In the second synopsis line (no  sampling  interval  specified),  atsar
       extracts data from a previously recorded file, either the one specified
       by the  -f  option  or,  by  default,  the  daily  activity  data  file
       /var/log/atsar/atsadd   for   the   current  day  dd  (day  of  month).
       Alternatively the -n option can be used to specify the day of the month
       from which counters should be shown.

       The starting and ending times of the report can be defined using the -s
       and -e time arguments of the form hh:mm. The -i option selects  records
       at  sec  second  intervals.  Otherwise, all intervals found in the data
       file are reported.

       The -flags option is used to  define  which  statistical  counters  are
       presented:

       -S   By default the time-stamp at the beginning of a line is suppressed
            if more lines are shown for one time-interval. With  this  flag  a
            time-stamp  is  given  for  every  output-line  (easier  for post-
            processing).

       -A   Statistics of all possible options.

       -u   Statistics about CPU utilization (average and per cpu).

       -P   Statistics about processes and load-averages.

       -d   Limited statistics about utilization of disks (2.4 kernel only).

       -D   Statistics about utilization of disks and disk-partitions.

       -r   Current memory- and swap-occupation.

       -p   Statistics about paging- and swapping-activity.

       -I   Statistics about the number interrupts per second.

       -v   Statistics about utilization of kernel-tables.

       -y   Statistics about utilization of tty’s (serial interfaces).

       -l   Statistics about the network interfaces.

       -L   Statistics about errors for network-interfaces.

       -w   Statistics about IP (version 4) network traffic).

       -W   Statistics about errors for IP (version 4) traffic.

       -m   General statistics about ICMP (version 4) layer activity.

       -M   Per-type statistics about ICMP (version 4) layer activity.

       -t   Statistics about TCP network traffic.

       -T   Statistics about errors for TCP-traffic.

       -U   Statistics about UDP (version 4) network traffic.

       -g   Statistics about IP (version 6) network traffic).

       -G   Statistics about errors for IP (version 6) traffic.

       -k   General statistics about ICMP (version 6) layer activity.

       -K   Per-type statistics about ICMP (version 6) layer activity.

       -j   Statistics about TCP (version 6) socket-utilization.

       -h   Statistics about UDP (version 6) network traffic.

       -N   Statistics about NFS server- and client-requests.

       -E   Statistics about errors for NFS server- and client-requests.

       -V   Statistics about behaviour of NFS-server.

       -R   Statistics about the RPC-calls for NFS-requests.  A  transfer-rate
            is  given  per  type of RPC-request (percentage of total number of
            RPC-requests).

       -F   Optional statistics about the ftp-traffic. This flag only produces
            relevant  output  if  the script atsaftp is activated with regular
            intervals (by the script atsa1 ).  Note that the names of the FTP-
            logfiles   have   to   be   specified   in   the   /etc/atsar.conf
            configuration-file.

       -H   Optional  statistics  about  the  http-traffic.  This  flag   only
            produces  relevant output if the script atsahttp is activated with
            regular intervals (by the script atsa1 ).  Note that the names  of
            the  HTTP-logfiles  have  to  be  specified in the /etc/atsar.conf
            configuration-file.

OUTPUT DESCRIPTION

       Depending on the flag, a  number  of  columns  with  output-values  are
       produced.   The  values  are mostly presented as a number of events per
       second.

       The output for the flag -u contains the following columns per cpu:

       usr%      Percentage of cpu-time consumed in  user-mode  (program-text)
                 for  all  active  processes running with a nice-value of zero
                 (default) or a negative  nice-value  (which  means  a  higher
                 priority  than  usual).   The cpu-consumption in user-mode of
                 processes with a nice-value larger than zero (lower priority)
                 is indicated in the nice%-column.

       nice%     Percentage  of  cpu-time consumed in user-mode (i.e. program-
                 text) for all processes running witn a nice-value larger than
                 zero (which means with a lower priority than average).

       sys%      Percentage  of cpu-time consumed in system-mode (kernel-text)
                 for all active processes. A high percentage usually indicates
                 a lot of system calls being issued.

                 Kernel-version 2.4:
                 Interrupt-handling is also part of this percentage.

       irq%      Percentage  of  cpu-time consumed for interrupt-handling (not
                 for kernel-version 2.4).

       softirq%  Percentage of cpu-time consumed for  soft  interrupt-handling
                 (not for kernel-version 2.4).

       idle%     Percentage  of unused cpu-time because all processes are in a
                 wait-state (>= kernel-version 2.6: but not waiting for  disk-
                 I/O).

       wait%     Percentage of unused cpu-time.  At least one of the processes
                 in wait-state awaits completion of disk-I/O (not for  kernel-
                 version 2.4).

       The output for the flag -P contains the following values:

       pswtch/s  Number of process-switches (also called context-switches) per
                 second on all cpu’s. A process-switch occurs  at  the  moment
                 that  the  active  process  (i.e.   the  process using a cpu)
                 enters a wait-state or has used  its  time-slice  completely;
                 another process will then be chosen to use the cpu.

       runq      Number  of  processes  which  are  currently waiting for CPU-
                 scheduling  (including  the  processes  which  are  currently
                 active on a CPU).

       nrproc    Total  number of processes which are currently present in the
                 system.

       lavg1     Load-average reflecting the average number  of  processes  in
                 the run-queue during the last minute.

       lavg5     Load-average  reflecting  the  average number of processes in
                 the run-queue during the last 5 minutes.

       lavg15    Load-average reflecting the average number  of  processes  in
                 the run-queue during the last 15 minutes.

       The  output  for  the flag -d contains the following columns per active
       physical disk:

       device    Disk-drive number (major-minor).

       read/s    Number of read-requests issued per second on this disk.

       rdKb/s    Number of Kbytes tranferred per second by read-requests.

       write/s   Number of write-requests issued per second on this disk.

       wrKb/s    Number of Kbytes tranferred per second by write-requests.

       rdwr/s    Number of read/write requests issued per second on this  disk
                 (total of read/s + write/s)

       The  output  for  the  flag  -D contains the following columns per used
       partition of a physical disk:

       partition Disk (-partition) name.  For the entire disk, the major-minor
                 number is shown between brackets.

       busy      Busy-percentage  of  the  physical  disk (i.e. the portion of
                 time that the device was busy handling requests). This figure
                 is  only  shown  for  partitions  which  represent the entire
                 physical disk.

       read/s    Number of read-requests issued per second on this  partition.
                 For  partitions which represent the entire physical disk, the
                 total number of read-requests per second for  all  partitions
                 on that disk is shown.

       Kbyt/r    Average  number  of  Kbytes  transferred per read-request for
                 this partition.  For partitions which  represent  the  entire
                 physical  disk, the average number of Kbytes per read-request
                 for all partitions on that disk is shown.

       write/s   Number of write-requests issued per second on this partition.
                 For  partitions which represent the entire physical disk, the
                 total number of write-requests per second for all  partitions
                 on that disk is shown.

       Kbyt/w    Average  number  of  Kbytes transferred per write-request for
                 this partition.  For partitions which  represent  the  entire
                 physical disk, the average number of Kbytes per write-request
                 for all partitions on that disk is shown.

       avque     Average number of  disk-requests  outstanding  in  the  queue
                 during  the  time  that the disk is busy. This figure is only
                 shown for partitions  which  represent  the  entire  physical
                 disk.

       avserv    Average  number  of  milliseconds needed by a request on this
                 physical disk (seek, latency and data-transfer). This  figure
                 is  only  shown  for  partitions  which  represent the entire
                 physical disk.

       The output for the flag -r contains information about the  memory-  and
       swap-utilization:

       memtot    Total usable main memory size (snapshot).

       memfree   Available main memory size (snapshot).

       buffers   Main memory used for cached metadata-blocks (snapshot).

       cached    Main memory used for cache data-blocks (snapshot).

       slabmem   Main  memory  used  for  dynamically  allocated memory by the
                 kernel (snapshot).

       swptot    Total swap space size (snapshot).

       swpfree   Available swap space size (snapshot).

       The output for the flag -p contains information about the frequency  of
       paging and swapping:

       pagein/s  The  number of memory-pages the system paged in from disk per
                 second.  This implies normal data-access (so not  necessarily
                 indicating lack of memory).

       pageout/s The  number  of memory-pages the system paged out to disk per
                 second.  This implies normal data-access (so not  necessarily
                 indicating lack of memory).

       swapin/s  The  number  of  memory-pages  the system read from the swap-
                 device per second.

       swapout/s The number of memory-pages the  system  wrote  to  the  swap-
                 device per second.

       fork/s    The number of new processes started per second.

       The  output  for  the  flag  -I  provides  information about interrupt-
       frequency, reported per irq per cpu.  Notice that for the  active  irq-
       levels the number of interrupts per second is shown.

       iq..      Number of interrupts per second for this interrupt-type.  The
                 file /proc/interrupts on  the  measured  system  shows  which
                 device uses this irq.

       The  output  for  the flag -v provides information about utilization of
       particular limited kernel-resources:

       superb-sz The current and  maximum  occupation  of  the  collection  of
                 super-blocks  which  is  maintained by the kernel for mounted
                 filesystems.

       inode-sz  The current and  maximum  occupation  of  the  collection  of
                 incore-inodes  maintained  by the kernel. One entry is needed
                 for every disk-file which is currently open (at least  once).

       file-sz   The current and maximum occupation of the collection of open-
                 file entries maintained by the kernel. One  entry  is  needed
                 for  every  open-request  for  a disk-file. So if one file is
                 currently opened by five processes, one incore-inode entry is
                 needed and five open-file entries.

       dquota-sz The current and maximum occupation of the collection of disk-
                 quota entries.

       flock-sz  The current and maximum number of file-locks.

       The output for the flag -y provides information  about  utilization  of
       tty’s:

       port      The port-number of the concerning serial interface.

       xmit/s    The number of transmit-interrupts per second for this tty.

       recv/s    The number of receive-interrupts per second for this tty.

       frer/s    The  number  of  framing-errors  discovered  by  the uart per
                 second.

       parer/s   The number  of  parity-errors  discovered  by  the  uart  per
                 second.

       ovrun/s   The  number  of  overrun-errors  discovered  by  the uart per
                 second.

       brk/s     The number of breaks discovered by the uart per second.

       The output for the flag -l provides information  about  utilization  of
       network-interfaces:

       inpck/s   Number of packets received from this interface per second.

       otpck/s   Number  of packets transmitted via this interface per second.

       inbyt/s   Number of bytes received from this interface per second.

       otbyt/s   Number of bytes transmitted via this interface per second.

       incmpr/s  Number of compressed packets received per second (slip).

       otcmpr/s  Number of compressed packets transmitted per second (slip).

       inmcst/s  Number of multicast-packets received from this interface  per
                 second.

       iface     Name of the interface.

       The  output  for  the  flag  -L provides information about the failures
       which were detected for network-interfaces:

       inerr/s   Number of  bad  packets  received  from  this  interface  per
                 second.

       oterr/s   Number  of  packet-transmit  problems  encountered  via  this
                 interface per second.

       coll/s    Number   of   collisions   encountered   per   second   while
                 transmitting packets.

       indrop/s  Number  of received packets dropped per second due to lack of
                 buffer-space in the local system.

       otdrop/s  Number of transmitted packets dropped per second due to  lack
                 of buffer-space in the local system.

       infram/s  Number  of  frame  alignment-errors encountered per second on
                 received packets.

       otcarr/s  Number  of   carrier-errors   encountered   per   second   on
                 transmitted packets.

       iface     Name of the interface.

       The  output  for the flag -w provides information about the utilization
       of the IPv4-layer (formal snmp-names between brackets):

       inrecv/s  Number  of  input  datagrams  received  from  interfaces  per
                 second, including those received in error (ipInReceives).

       outreq/s  Number  of  IP  datagrams  per second that local higher-layer
                 protocols  supplied  to  IP  in  requests  for   transmission
                 (ipOutRequests).

       indeliver/s
                 Number   of   input  datagrams  per  second  that  have  been
                 succesfully    delivered    to     higher     protocol-layers
                 (ipInDelivers).

       forward/s Number  of  input  datagrams per second for which this entity
                 was not their final IP destination, as a result of  which  an
                 attempt was made to forward (ipForwDatagrams).

       reasmok/s Number  of  IP  datagrams  succesfully reassembled per second
                 (ipReasmOKs).

       fragcreat/s
                 Number of IP datagram fragments generated per second at  this
                 entity (ipFragCreates).

       The  output  for  the  flag  -W provides information about the failures
       which were  detected  in  the  IPv4-layer  (formal  snmp-names  between
       brackets):

       indsc/s   Number of input IP datagrams per second for which no problems
                 were encountered to prevent their  continued  processing  but
                 that   were   discarded,   e.g.  for  lack  of  buffer  space
                 (ipInDiscards).

       hder/s    Number of input datagrams per second discarded due to  errors
                 in the IP header (ipInHdrErrors).

       ader/s    Number of input datagrams per second discarded because the IP
                 address in the destination field was not valid to be received
                 by this entity (ipInAddrErrors).

       unkp/s    Number  of  inbound  packets  per  second that were discarded
                 because   of   an    unknown    or    unsupported    protocol
                 (ipInUnknownProtos).

       ratim/s   Number of timeout-situations per second while other fragments
                 were expected for successful reassembly (ipReasmTimeout).

       rfail/s   Number of failures detected per second by the  IP  reassembly
                 algorithm (ipReasmFails).

       otdsc/s   Number  of  output  IP  datagrams  per  second  for  which no
                 problems  were  encountered  to   prevent   their   continued
                 processing  but  that were discarded, e.g. for lack of buffer
                 space (ipOutDiscards).

       nort/s    Number of IP datagrams per second discarded because no  route
                 could be found (ipOutNoRoutes).

       The  output  for the flag -t provides information about the utilization
       of the TCP-layer (formal snmp-names between brackets):

       insegs/s  Number of  received  segments  per  second,  including  those
                 received in error (tcpInSegs).

       otsegs/s  Number  of  transmitted  segments per second, excluding those
                 containing only retransmitted octets (tcpOutSegs).

       actopen/s Number of active opens per second that have been supported by
                 this entity (tcpActiveOpens).

       pasopen/s Number  of  passive opens per second that have been supported
                 by this entity (tcpPassiveOpens).

       nowopen   Number of connections currently open  (snapshot),  for  which
                 the state is either ESTABLISHED or CLOSE-WAIT (tcpCurrEstab).

       socknow   Number of TCPv4-sockets currently open (snapshot).

       sockmax   Maximum number of parallel  TCPv4-sockets  ever  open.   This
                 value is not always supported by the kernel.

       The  output  for  the  flag  -T provides information about the failures
       which  were  detected  in  the  TCP-layer  (formal  snmp-names  between
       brackets):

       inerr/s   Number  of  received  segments  per  second received in error
                 (tcpInErrs).

       retrans/s Number of retransmitted segments per second (tcpRetransSegs).

       attfail/s Number  of  failed  connection  attempts per second that have
                 occurred at this entity (tcpAttemptFails).

       estabreset/s
                 Number of resets per second that have occurred at this entity
                 (tcpEstabResets).

       outreset/s
                 Number  of transmitted segments per second containing the RST
                 flag (tcpOutRsts).

       The output for the flag -U provides information about  the  utilization
       of the UDPv4-layer (formal snmp-names between brackets):

       indgram/s Number  of  UDP  datagrams  per second delivered to UDP users
                 (udpInDatagrams),

       otdgram/s Number of UDP datagrams  transmitted  per  second  from  this
                 entity (udpOutDatagrams),

       inerr/s   Number of received UDP datagrams per second that could not be
                 delivered for reasons other than the lack of  an  application
                 at the destination port (udpInErrors).

       noport/s  Number  of  received UDP datagrams per second for which there
                 was no application at the destination port (udpNoPorts).

       socknow   Number of UDP-sockets currently open (snapshot).

       sockmax   Maximum number of parallel UDP-sockets ever open.  This value
                 is not always supported by the kernel.

       The  output  for  the  flag  -m  provides information about the general
       utilization of the ICMPv4-layer and some information per type of  ICMP-
       message (formal snmp-names between brackets):

       intot/s   Number  of  ICMP  messages  (any type) received per second at
                 this entity (icmpInMsgs).

       outtot/s  Number of ICMP messages (any  type)  transmitted  per  second
                 from this entity (icmpOutMsgs).

       inecho/s  Number  of  ICMP  Echo (request) messages received per second
                 (icmpInEchos).

       inerep/s  Number  of  ICMP  Echo-Reply  messages  received  per  second
                 (icmpInEchoReps).

       otecho/s  Number of ICMP Echo (request) messages transmitted per second
                 (icmpOutEchos).

       oterep/s  Number of ICMP Echo-Reply  messages  transmitted  per  second
                 (icmpOutEchoReps).

       The  output  for  the flag -M provides information about other types of
       ICMPv4-messages (formal snmp-names between brackets):

       ierr/s    Number of ICMP messages received per second but determined to
                 have ICMP-specific errors (icmpInErrors).

       isq/s     Number  of  ICMP  Source  Quench messages received per second
                 (icmpInSrcQuenchs).

       ird/s     Number  of  ICMP  Redirect  messages  received   per   second
                 (icmpInRedirects).

       idu/s     Number  of ICMP Destination Unreachable messages received per
                 second (icmpInDestUnreachs).

       ite/s     Number of ICMP Time Exceeded  messages  received  per  second
                 (icmpOutTimeExcds).

       oerr/s    Number of ICMP messages transmitted per second but determined
                 to have ICMP-specific errors (icmpOutErrors).

       osq/s     Number of ICMP Source Quench messages transmitted per  second
                 (icmpOutSrcQuenchs).

       ord/s     Number  of  ICMP  Redirect  messages  transmitted  per second
                 (icmpOutRedirects).

       odu/s     Number of ICMP Destination Unreachable  messages  transmitted
                 per second (icmpOutDestUnreachs).

       ote/s     Number  of ICMP Time Exceeded messages transmitted per second
                 (icmpOutTimeExcds).

       The output for the flag -g provides information about  the  utilization
       of the IPv6-layer (formal snmp-names between brackets):

       inrecv/s  Number  of  input IPv6-datagrams received from interfaces per
                 second,     including     those     received     in     error
                 (ipv6IfStatsInReceives).

       outreq/s  Number  of  IPv6-datagrams per second that local higher-layer
                 protocols  supplied  to  IP  in  requests  for   transmission
                 (ipv6IfStatsOutRequests).   This counter does not include any
                 forwarded datagrams.

       inmc/s    Number  of  multicast  packets  per  second  that  have  been
                 received by the interface (ipv6IfStatsInMcastPkts).

       outmc/s   Number  of  multicast  packets  per  second  that  have  been
                 transmitted to the interface (ipv6IfStatsOutMcastPkts).

       indeliv/s Number of IP datagrams succesfully delivered  per  second  to
                 IPv6  user-protocols, including ICMP (ipv6IfStatsInDelivers).

       reasmok/s Number of IPv6 datagrams succesfully reassembled  per  second
                 (ipv6IfStatsReasmOKs).

       fragcre/s Number  of  IPv6  datagram  fragments generated per second at
                 this entity (ipv6IfStatsOutFragCreates).

       The output for the flag -G  provides  information  about  the  failures
       which  were  detected  in  the  IPv4-layer  (formal  snmp-names between
       brackets):

       indsc/s   Number of input  IPv6  datagrams  per  second  for  which  no
                 problems   were   encountered   to  prevent  their  continued
                 processing but that were discarded, e.g. for lack  of  buffer
                 space (ipv6IfStatsInDiscards).

       hder/s    Number  of input datagrams per second discarded due to errors
                 in the IPv6 header (ipv6IfStatsInHdrErrors).

       ader/s    Number of input datagrams per second  discarded  because  the
                 IPv6  address  in  the  destination field was not valid to be
                 received by this entity (ipv6IfStatsInAddrErrors).

       unkp/s    Number of locally-addressed datagrams per  second  that  were
                 discarded  because  of  an  unknown  or  unsupported protocol
                 (ipv6IfStatsInUnknownProtos).

       ratim/s   Number of timeout-situations  per  second  while  other  IPv6
                 fragments were expected for successful reassembly.

       rfail/s   Number   of   failures   detected  per  second  by  the  IPv6
                 reassembly-algorithm (ipv6IfStatsReasmFails).

       otdsc/s   Number of output IPv6  datagrams  per  second  for  which  no
                 problems   were   encountered   to  prevent  their  continued
                 processing but that were discarded, e.g. for lack  of  buffer
                 space (ipv6IfStatsOutDiscards).

       nort/s    Number  of  IPv6  datagrams  per  second discarded because no
                 route could be found (ipv6IfStatsInNoRoutes).

       The output for the flag -j provides information about  the  utilization
       of the TCPv6-sockets:

       socknow   Number of TCPv6-sockets currently open (snapshot).

       sockmax   Maximum  number  of  parallel  TCPv6-sockets ever open.  This
                 value is not always supported by the kernel.

       The output for the flag -h provides information about  the  utilization
       of the UDPv6-layer (formal snmp-names between brackets):

       indgram/s Number  of  UDPv6 datagrams per second delivered to UDP users
                 (udpInDatagrams),

       otdgram/s Number of UDPv6 datagrams transmitted per  second  from  this
                 entity (udpOutDatagrams),

       inerr/s   Number  of received UDPv6 datagrams per second that could not
                 be  delivered  for  reasons  other  than  the  lack   of   an
                 application at the destination port (udpInErrors).

       noport/s  Number of received UDPv6 datagrams per second for which there
                 was no application at the destination port (udpNoPorts).

       socknow   Number of UDPv6 sockets currently open (snapshot).

       sockmax   Maximum number of parallel UDPv6  sockets  ever  open.   This
                 value is not always supported by the kernel.

       The  output  for  the  flag  -k  provides information about the general
       utilization of the ICMPv6-layer and some information per type of  ICMP-
       message (formal snmp-names between brackets):

       intot/s   Number  of  ICMPv6 messages (any type) received per second at
                 the interface (ipv6IfIcmpInMsgs).

       outtot/s  Number of ICMPv6 messages (any type) transmitted  per  second
                 from this entity (ipv6IfIcmpOutMsgs).

       inerr/s   Number of ICMPv6 messages received per second which had ICMP-
                 specific errors, such as bad ICMP checksums, bad length,  etc
                 (ipv6IfIcmpInErrors).

       innsol/s  Number  of ICMP Neighbor Solicit messages received per second
                 (ipv6IfIcmpInNeighborSolicits).

       innadv/s  Number of ICMP Neighbor Advertisement messages  received  per
                 second (ipv6IfIcmpInNeighborAdvertisements).

       otnsol/s  Number  of  ICMP  Neighbor  Solicit  messages transmitted per
                 second (ipv6IfIcmpOutNeighborSolicits).

       otnadv/s  Number of ICMP Neighbor  Advertisement  messages  transmitted
                 per second (ipv6IfIcmpOutNeighborAdvertisements).

       The  output  for  the flag -K provides information about other types of
       ICMPv6-messages (formal snmp-names between brackets):

       iecho/s   Number of ICMP Echo (request) messages  received  per  second
                 (ipv6IfIcmpInEchos).

       ierep/s   Number  of  ICMP  Echo-Reply  messages  received  per  second
                 (ipv6IfIcmpInEchoReplies).

       oerep/s   Number of ICMP Echo-Reply  messages  transmitted  per  second
                 (ipv6IfIcmpOutEchoReplies).

       idu/s     Number  of ICMP Destination Unreachable messages received per
                 second (ipv6IfIcmpInDestUnreachs).

       odu/s     Number of ICMP Destination Unreachable  messages  transmitted
                 per second (ipv6IfIcmpOutDestUnreachs).

       ird/s     Number   of   ICMP  Redirect  messages  received  per  second
                 (ipv6IfIcmpInRedirects).

       ord/s     Number of  ICMP  Redirect  messages  transmitted  per  second
                 (ipv6IfIcmpOutRedirect).

       ite/s     Number  of  ICMP  Time  Exceeded messages received per second
                 (ipv6IfIcmpInTimeExcds).

       ote/s     Number of ICMP Time Exceeded messages transmitted per  second
                 (ipv6IfIcmpOutTimeExcds).

       The  output  for the flag -N provides information about the utilization
       of the NFS-layer, acting as NFS-client as well as NFS-server:

       svrpc/s   Number of RPC-requests handled by this NFS-server system  per
                 second.

       clrpc/s   Number  of  RPC-requests issued by this NFS-client system per
                 second.

       sudp/s    Number of requests handled via UDP by this NFS-server  system
                 per second.

       stcp/s    Number  of requests handled via TCP by this NFS-server system
                 per second.

       stcon/s   Number of  TCP-connections  established  by  this  NFS-server
                 system per second.

       cudp/s    Number  of  requests issued via UDP by this NFS-client system
                 per second.

       ctcp/s    Number of requests issued via TCP by this  NFS-client  system
                 per second.

       ctcon/s   Number  of  TCP-connections  established  by  this NFS-client
                 system per second.

       The output for the flag -E  provides  information  about  the  failures
       which were detected in the NFS-layer:

       svbadfmt/s
                 Number  of RPC-requests received per second by the NFS-server
                 system with a bad format (version-number  if  RPC-packet  not
                 recognized).

       svbadauth/s
                 Number  of RPC-requests received per second by the NFS-server
                 system with a bad authorization.

       svbadclnt/s
                 Meaning unknown.

       clretrans/s
                 Number of RPC-request which have been  retransmitted  by  the
                 NFS-client per second due to a timeout.

       clauthrefresh/s
                 Number  of times that the credentials have been refreshed per
                 second by the NFS-client due to rejection by the  NFS-server.

       The  output for the flag -V provides information about the behaviour of
       the NFS-server:

       rchit/s   Number of succesful accesses on the reply-cache per second.

       rcmiss/s  Number of unsuccesful accesses on the reply-cache per second.

       %hit      Hit-ratio for the reply-cache.

       fhstale/s Number of stale-errors per second for file-handles.

       iord/s    Number  of  bytes returned to read-requests per second.  This
                 counter is not supported by all NFS-versions (contains zero).

       iowr/s    Number  of  bytes  passed in write-requests per second.  This
                 counter is not supported by all NFS-versions (contains zero).

       thrnow    Number  of avaliable threads (nfsd-servers).  This counter is
                 not supported by all NFS-versions (contains zero).

       tlast/s   Number of times that the last available thread  is  activated
                 per  second.   This  counter  is  not  supported  by all NFS-
                 versions (contains zero).

       The output for the flag -R provides information about the types of RPC-
       calls  used  by  the NFS-layer (NFS-client as well as NFS-server). Note
       that per RPC-type the usage-percentage is shown.

       gat       Percentage of RPC-call type Get Attribute.

       sat       Percentage of RPC-call type Set Attribute.

       lku       Percentage of RPC-call type Lookup.

       rln       Percentage of RPC-call type Read Link.

       rd        Percentage of RPC-call type Read.

       wrc       Percentage of RPC-call type Write Cache.

       wr        Percentage of RPC-call type Write.

       cre       Percentage of RPC-call type Create.

       rm        Percentage of RPC-call type Remove.

       rnm       Percentage of RPC-call type Rename.

       lnk       Percentage of RPC-call type Link.

       sln       Percentage of RPC-call type Symbolic Link.

       mkd       Percentage of RPC-call type Mkdir.

       rmd       Percentage of RPC-call type Rmdir.

       rdd       Percentage of RPC-call type Read Directory.

       fst       Percentage of RPC-call type Statfs.

       The output for the flag -F provides information about the  FTP-traffic.
       Note  that  the  script  atsaftp  should be installed and called by the
       script atsa1 with regular intervals. The counters are not  relevant  if
       atsar is started with an interval; only when viewing long-term counters
       from a history-file.

       xfers/s   Number of FTP-transfers per second.

       kbytes/s  Number of Kbytes transferred per second during the  interval.

       avg_time  Average number of seconds per ftp-transfer.

       avg_kbytes
                 Average number of Kbytes per ftp-transfer.

       direct    Direction indicates whether these files have been transmitted
                 (output) or received (input) via FTP.

       name      Symbolic name (as specified in the /etc/atsar.conf  file)  of
                 the xfer-log file from which the usage-info is retrieved.

       The  output  for  the  flag  -H provides information about Apache HTTP-
       traffic. Note that the script atsahttp should be installed  and  called
       by  the  script  atsa1  with  regular  intervals.  The counters are not
       relevant if atsar is started with an interval; only when viewing  long-
       term counters from a history-file.

       head/s    Number of http-requests handled per second (type HEAD).

       get/s     Number of http-requests handled per second (type GET).

       put/s     Number of http-requests handled per second (type PUT).

       post/s    Number of http-requests handled per second (type POST).

       delete/s  Number of http-requests handled per second (type DELETE).

       name      Symbolic  name  (as specified in the /etc/atsar.conf file) of
                 the access-log file from which the usage-info is retrieved.

EXAMPLES

       To see today’s processor-activity so far:

       atsar

       To watch TCP activity evolve for ten minutes  (10  samples  with  sixty
       seconds interval):

       atsar -t 60 10

FILES

       /var/log/atsar/atsadd

       Daily data file, where dd are digits representing the day of the month.

SEE ALSO

       atsadc(1)

AUTHOR

       Gerlof Langeveld, AT Computing (gerlof@ATComputing.nl)