After Linux 2.6.36, the heuristic calculation of oom_score has changed to only consider used memory and CAP_SYS_ADMIN. See commit a63d83f427fbce97a6cea0db2e64b0eb8435cd10 in kernel tree. Signed-off-by: Marcus Folkesson <marcus.folkesson@xxxxxxxxx> --- man5/proc.5 | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/man5/proc.5 b/man5/proc.5 index 82d4a0646..4e44b8fba 100644 --- a/man5/proc.5 +++ b/man5/proc.5 @@ -1395,7 +1395,9 @@ Since Linux 2.6.36, use of this file is deprecated in favor of .IR /proc/[pid]/oom_score_adj . .TP .IR /proc/[pid]/oom_score " (since Linux 2.6.11)" -.\" See mm/oom_kill.c::badness() in the 2.6.25 sources +.\" See mm/oom_kill.c::badness() in pre 2.6.36 sources +.\" See mm/oom_kill.c::oom_badness() after 2.6.36 +.\" commit a63d83f427fbce97a6cea0db2e64b0eb8435cd10 This file displays the current score that the kernel gives to this process for the purpose of selecting a process for the OOM-killer. @@ -1403,7 +1405,16 @@ A higher score means that the process is more likely to be selected by the OOM-killer. The basis for this score is the amount of memory used by the process, with increases (+) or decreases (\-) for factors including: -.\" See mm/oom_kill.c::badness() in the 2.6.25 sources +.\" See mm/oom_kill.c::badness() in pre 2.6.36 sources +.\" See mm/oom_kill.c::oom_badness() after 2.6.36 +.\" commit a63d83f427fbce97a6cea0db2e64b0eb8435cd10 +.RS +.IP * 2 +whether the process is privileged (\-); +.\" More precisely, if it has CAP_SYS_ADMIN or (pre 2.6.36) CAP_SYS_RESOURCE +.RE +.IP +Before kernel 2.6.36 the following factors were also used in the calculation of oom_score: .RS .IP * 2 whether the process creates a lot of children using @@ -1413,10 +1424,7 @@ whether the process creates a lot of children using whether the process has been running a long time, or has used a lot of CPU time (\-); .IP * -whether the process has a low nice value (i.e., > 0) (+); -.IP * -whether the process is privileged (\-); and -.\" More precisely, if it has CAP_SYS_ADMIN or CAP_SYS_RESOURCE +whether the process has a low nice value (i.e., > 0) (+); and .IP * whether the process is making direct hardware access (\-). .\" More precisely, if it has CAP_SYS_RAWIO -- 2.13.1 -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
