Commit 358e419f authored by Carlos Alberto Lopez Perez's avatar Carlos Alberto Lopez Perez Committed by Linus Torvalds

Documentation/sysctl/kernel.txt: document /proc/sys/shmall

Signed-off-by: default avatarCarlos Alberto Lopez Perez <clopez@igalia.com>
Cc: Rob Landley <rob@landley.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 3fcfe786
...@@ -561,6 +561,19 @@ are doing anyway :) ...@@ -561,6 +561,19 @@ are doing anyway :)
============================================================== ==============================================================
shmall:
This parameter sets the total amount of shared memory pages that
can be used system wide. Hence, SHMALL should always be at least
ceil(shmmax/PAGE_SIZE).
If you are not sure what the default PAGE_SIZE is on your Linux
system, you can run the following command:
# getconf PAGE_SIZE
==============================================================
shmmax: shmmax:
This value can be used to query and set the run time limit This value can be used to query and set the run time limit
......
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