Commit Graph

13 Commits

Author SHA1 Message Date
Ross Williams a88d2e313d Refactor common OpenZFS sysctl access
Darwin and FreeBSD export zfs kstats through the
same APIs, so moving functions into a common file.
2019-07-07 23:10:54 -04:00
Ross Williams 070fe90461 ZFS arcstats for Linux
If no pools are imported (ARC size == 0) or the
ZFS module is not in the kernel (/proc/spl/kstat/zfs/arcstats
does not exist), then the Meter reports "Unavailable".
2019-07-07 22:57:15 -04:00
Shawn Landden bd1d719a61 Linux: add process->starttime and use it for STARTTIME column (#700)
this way a remount of /proc will not reset starttimes
and we can also see startup times for processes started before the mount
of /proc

also record btime (boot time in seconds since epoch) as Linux semi-global
2018-08-19 01:29:03 -03:00
Hisham Muhammad ccd156f8ba Updates to generated header files 2018-02-26 11:44:46 -03:00
André Carvalho b7b66b76a5 Adds support for linux delay accounting (#667)
Adds support for showing columns with linux delay accounting.

This information can be read from the netlink interface, and thus we set up a socket to read from that when initializing the LinuxProcessList (LinuxProcessList_initNetlinkSocket). After that, for each process we call LinuxProcessList_readDelayAcctData, which sends a message thru the socket after setting up a callback to get the answer from the Kernel. That callback sets the process total delay time attribute. We then set the delay percent as the percentage of time process cpu time since last scan.
2017-12-04 00:15:29 -02:00
Hisham 8af4d9f453 Interpret TTY_NR column on Linux,
translate dev_t to major:minor on other platforms.
Closes #316.
2016-10-01 03:09:04 -03:00
Explorer09 6dae8108f8 Introduce CLAMP macro. Unify all MIN(MAX(a,b),c) uses.
With the CLAMP macro replacing the combination of MIN and MAX, we will
have at least two advantages:
1. It's more obvious semantically.
2. There are no more mixes of confusing uses like MIN(MAX(a,b),c) and
   MAX(MIN(a,b),c) and MIN(a,MAX(b,c)) appearing everywhere. We unify
   the 'clamping' with a single macro.
Note that the behavior of this CLAMP macro is different from
the combination `MAX(low,MIN(x,high))`.
* This CLAMP macro expands to two comparisons instead of three from
  MAX and MIN combination. In theory, this makes the code slightly
  smaller, in case that (low) or (high) or both are computed at
  runtime, so that compilers cannot optimize them. (The third
  comparison will matter if (low)>(high); see below.)
* CLAMP has a side effect, that if (low)>(high) it will produce weird
  results. Unlike MIN & MAX which will force either (low) or (high) to
  win. No assertion of ((low)<=(high)) is done in this macro, for now.

This CLAMP macro is implemented like described in glib
<http://developer.gnome.org/glib/stable/glib-Standard-Macros.html>
and does not handle weird uses like CLAMP(a++, low++, high--) .
2016-01-15 20:26:01 +08:00
Hisham Muhammad 802e216870 Extend buffer for reading lines from /proc.
Apparently a line longer than 255 chars was spotted in the wild:
http://serverfault.com/questions/577939/linux-ps-htop-show-processes-running-for-hundreds-or-thousands-of-days-though-h#comment676098_577939
2015-12-14 13:27:11 -02:00
Hisham Muhammad 2f45008477 Enable OOM support unconditionally on Linux.
Read OOM data only if column is enabled.
Make sort ordering more consistent. Closes #182.
2015-04-09 15:41:21 -03:00
Hisham Muhammad 4e064e0db7 Build fixes to resync with FreeBSD changes. 2015-03-16 23:03:40 -03:00
Hisham Muhammad 7fd4af80ff Linux build fixes. 2015-03-16 03:25:43 -03:00
Hisham Muhammad 3383d8e556 Sorry about the mega-patch.
This is a work-in-progress, code is currently broken.
(Some actions, and notably, the header, are missing.)
2015-01-21 23:27:31 -02:00
Hisham Muhammad 430c7c9a9b Move platform-dependent parts of Linux battery meter. 2014-11-27 21:04:57 -02:00