On Tue, Sep 3, 2013 at 5:14 PM, Waiman Long <waiman.long@xxxxxx> wrote: > On 09/03/2013 02:01 AM, Ingo Molnar wrote: >> >> * Waiman Long<waiman.long@xxxxxx> wrote: >> >>> Yes, that patch worked. It eliminated the lglock as a bottleneck in the >>> AIM7 workload. The lg_global_lock did not show up in the perf profile, >>> whereas the lg_local_lock was only 0.07%. >> >> Just curious: what's the worst bottleneck now in the optimized kernel? :-) >> >> Thanks, >> >> Ingo > > With the following patches on v3.11: > 1. Linus's version of lockref patch > 2. Al's lglock patch > 3. My preliminary patch to convert prepend_path under RCU > With no reference where to get those patches, it's a bit hard to follow. I will try some perf benchmarking with the attached patch against Linux "WfW" edition. - Sedat -
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3.11.0-1-lockref-small.patch
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