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All releases of sysstat

  •  14 Mar 2004 20:42
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    Release Notes: iostat will again look for statistics in /proc/partitions if available. statistics are now read by iostat and mpstat as unsigned long instead of int to avoid integer overflow. iostat should now handle properly the case when the 'weighted number of milliseconds spent doing I/Os' decreases with time. A minor temporary file vulnerability has been fixed in the isag command.

    •  07 Feb 2004 20:03
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      Release Notes: The -L option was added to sadc. sadc is now able to lock its output file to prevent multiple instances from writing to it at once. The code now handles the case where, under very special circumstances, STDOUT may become unavailable, and sar, iostat, and mpstat are no longer able to display anything.

      •  15 Nov 2003 20:38
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        Release Notes: New fields were added to mpstat: %irq and %soft. Sar and iostat were updated to take into account the time spent servicing interrupts and softirqs when displaying the percentage of time in system mode. By default, iostat now displays only statistical information for devices that are used by the system. The sar, iostat, and mpstat manual pages were updated.

        •  29 Sep 2003 23:51
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          Release Notes: /proc/diskstats is now the preferred source for iostat and sar to get their device statistics. sar is now fully compliant with 2.6 Linux kernels. New statistics added to sar: page faults, swap cached, device stats, and more. sar now looks more aggressively for network devices in /proc/net/dev. A problem reading /proc/interrupts when there are a lot of CPUs has been fixed (mpstat and sadc).

          •  26 Aug 2003 20:02
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            Release Notes: Machine uptime calculation is now optimized on SMP machines. An -F option has been added to sadc. The processor number to which the process is attached is again displayed by sar -x. CPU usage for processes, as displayed by sar -x and sar -X, should now be correct on machines where HZ is not equal to 100 (e.g. the IA-64 architecture). iostat still assumed that jiffies were 100ths of a second in some places. It now uses the Linux HZ definition everywhere. The average I/O request's queue length as displayed by iostat -x was incorrectly calculated. This is now fixed.

            •  24 Jul 2003 19:32
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              Release Notes: "sar -x pid" and "sar -X pid" work again. sar had a longstanding bug that prevented -P from working properly if the machine had more than 32 processors. This is now fixed. A bug introduced in 4.1.2, which made some LINUX RESTART messages not be displayed by sar, has been fixed.

              •  07 Jul 2003 22:04
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                Release Notes: The way overflow conditions were handled by sar for interfaces counters has been fixed. On really big machines with 100 GB of memory or more, the values read by sadc in /proc/meminfo would get truncated and cause havoc in the calculations. This is now fixed. The sar option "-x SUM" has been removed. NLS has been updated. A Polish translation has been added. Proper charset and encoding declarations have been added to fix msgfmt warnings and allow gettext to recode between various charsets.

                •  20 May 2003 20:55
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                  Release Notes: iostat should now be fully 2.5/2.6 kernel compliant. Disks arrays in iostat are now dynamically sized. In iostat, sysfs is now used in preference to /proc/stat if available. iostat will no longer look for statistics in /proc/partitions. The sysfs filesystem must now be available for iostat to get its extended stats (post 2.5 kernels). For iostat, devices for which statistics are requested can now be entered on the command line even if option -x is not used. NLS updated. Romanian translation added.

                  •  29 Jan 2003 09:06
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                    Release Notes: sar -q now also displays load average for the past 15 minutes. A -P option was added for displaying stats on a per-processor basis, and the iowait value displayed by sar on SMP machines with pre-2.5 kernels was fixed. When displaying CPU utilization on SMP machines, sar now recalculates the interval based on current CPU's tick count. The number of CPUs is always checked when reading /proc/stat, and sadc no longer assumes that the first line in /proc/net/sockstat concerns sockets.

                    •  09 Jan 2003 21:27
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                      Release Notes: sar -u/-U, iostat, and mpstat can now display time spent in I/O wait mode (with 2.5 kernels and above). Values like -1 and -2 are no longer aliases for the keywords ALL and XALL (sar -U, sar -I, and mpstat -P). A bug has been fixed in iostat.h. LC_CTYPE needs to be set, or it will emit messages with ?????? only on some locales, especially ja_JP.eucJP.

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