* [BUG] perf kmem: Processed 0 events and LOST 75691!
@ 2011-08-02 3:59 Han Pingtian
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From: Han Pingtian @ 2011-08-02 3:59 UTC (permalink / raw)
To: linux-kernel, linux-perf-users
Hello,
I got this with 3.0 perf, but the running kernel is a old one:
[root@hp-dl580g7-01 perf]# ./perf kmem record sleep 1
[ perf record: Woken up 0 times to write data ]
[ perf record: Captured and wrote 21.789 MB perf.data (~951977 samples)
]
Processed 0 events and LOST 76148!
Check IO/CPU overload!
[root@hp-dl580g7-01 perf]# ./perf kmem stat
Processed 0 events and LOST 76148!
Check IO/CPU overload!
SUMMARY
=======
Total bytes requested: 5725028
Total bytes allocated: 6291512
Total bytes wasted on internal fragmentation: 566484
Internal fragmentation: 9.003941%
Cross CPU allocations: 28/84295
Is this a bug?
Thanks.
--
Han Pingtian
Quality Engineer
hpt @ #kernel-qe
Red Hat, Inc
Freedom ... courage ... Commitment ... ACCOUNTABILITY
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2011-08-02 3:59 [BUG] perf kmem: Processed 0 events and LOST 75691! Han Pingtian
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