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| author |   Nathan Zimmer <nzimmer@sgi.com> | 2013-02-21 15:15:08 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2013-02-22 10:27:24 +0100 |
| commit | cb152ff26717961b10d0888cd983ba284cb99cd1 (patch) | |
| tree | fa23de9f176321a54e60529e21389f1ac930bc30 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | sched/core: Remove the obsolete and unused nr_uninterruptible() function (diff) | |
| download | linux-dev-cb152ff26717961b10d0888cd983ba284cb99cd1.tar.xz linux-dev-cb152ff26717961b10d0888cd983ba284cb99cd1.zip | |
sched: Fix /proc/sched_stat failure on very very large systems
On systems with 4096 cores doing a cat /proc/sched_stat fails,
because we are trying to push all the data into a single kmalloc
buffer.
The issue is on these very large machines all the data will not
fit in 4mb.
A better solution is to not use the single_open() mechanism but
to provide our own seq_operations.
The output should be identical to previous version and thus not
need the version number.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wu Fengguang <fengguang.wu@intel.com>
[ Fix memleak]
[ Fix spello in comment]
[ Fix warnings]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions