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| author | Carlos Alberto Lopez Perez <clopez@igalia.com> | 2013-01-04 15:35:05 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-01-04 16:11:46 -0800 |
| commit | 358e419f826b552c9d795bcd3820597217692461 (patch) | |
| tree | bb7d83275e46ca18b2cc60ce17508aaf1409557c | |
| parent | 3fcfe78658695b424314ddb76abc8d58b4fc98e6 (diff) | |
| download | lwn-358e419f826b552c9d795bcd3820597217692461.tar.gz lwn-358e419f826b552c9d795bcd3820597217692461.zip | |
Documentation/sysctl/kernel.txt: document /proc/sys/shmall
Signed-off-by: Carlos 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | Documentation/sysctl/kernel.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 51b953a1b149..ccd42589e124 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -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: This value can be used to query and set the run time limit |