This is a technical and debug version. Among the improvements, note that sysstat will now read the files in /proc only once per collection cycle. Also the addition of a new flag (-G) to iostat, cifsiostat and tapestat to display statistics in GiB/s, a fix regarding how pgsteal/s (displayed by sar -B) is calculated, and various other fixes and optimizations.

This version fixes a bug with pgsteal values displayed by sar which were twice too large with recent kernels. This version also accepts Truecolor (RGB) SGR codes, allowing for a wider range of colors in sysstat commands output. Apart from that, this version is mainly a technical one, taking into account several suggestions made by Le Chat from Mistral AI.

This version includes small improvements like:

• The addition of a new metric (kbshmem) to sar and sadf to monitor shared memory.
• The addition of a new option (-U) to cifsiostat, iostat, mpstat and tapestat commands to display timestamps in seconds since the Epoch.
• The support for sysstat out-of-tree building and testing.

This version adds JSON output to pidstat, tapestat and cifsiostat with new option “-o JSON”. Now all sysstat commands can output their statistics in JSON format. It also includes an improved fix for CVE-2022-39377 and CVE-2023-33204 (sysstat overflow on 32-bit and possibly 64-bit systems) with a complete rewrite of the overflow check function, fixing a last, late-detected flaw.

This version brings improvements mainly to sadf’s SVG output format. In particular the long-standing problem with oversized SVG canvas height has been fixed here. Also note that sar’s retrans/s field used in the A_NET_ETCP report has been renamed to retrseg/s to avoid confusion with another field with the same name used in the A_NET_NFS report.

The sar command here includes two new metrics (pgprom/s et pgdem/s) so that we can now track the number of pages promoted or demoted by the system per second (that is to say, the number of pages migrated from slow to fast, or from fast to slow, memory types). Another metric (%vmeff) has also been removed from sar, as it was more a kernel metric than a system one and it was wrongly calculated with recent kernels. You will also find various small fixes and improvements in this version.

Previous 12.7.3 version (released two days ago) was a Brown Paper Bag release! Current one only fixes a problem that prevented sysstat from being installed. Sorry for that.

This version adds extended reports support to sar. Extended reports, available using option -x with sar, display minimum and maximum values in addition to average ones at the end of each report.
This version also includes a lot of fixes and small other improvements.