Peter Zijlstra wrote:
On Tue, 2007-01-23 at 10:45 +0100, Ingo Molnar wrote:
The fix is to enhance blocking_notifier_call_chain() to only take the
lock if there appears to be work on the call-chain.
With this patch applied i get nicely saturated system, and much higher
munmap performance, on
On Tue, 2007-01-23 at 10:45 +0100, Ingo Molnar wrote:
> Subject: [patch] notifiers: fix blocking_notifier_call_chain() scalability
> From: Ingo Molnar <[EMAIL PROTECTED]>
>
> while lock-profiling the -rt kernel i noticed weird contention during
> mmap-intense workloads, and
Subject: [patch] notifiers: fix blocking_notifier_call_chain() scalability
From: Ingo Molnar <[EMAIL PROTECTED]>
while lock-profiling the -rt kernel i noticed weird contention during
mmap-intense workloads, and the tracer showed the following gem, in one
of our MM hotpaths:
threaded-2
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