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Adrian Bunk <bunk@stusta.de> writes: > > Subject : x86_64: NR_IRQ increase causes 11.5% slowdown > in lmbench's fork benchmark > References : http://lkml.org/lkml/2006/11/2/192 > Submitter : Tim Chen <tim.c.chen@linux.intel.com> > Caused-By : Eric W. Biederman <ebiederm@xmission.com> > commit 550f2299ac8ffaba943cf211380d3a8d3fa75301 > Handled-By : Eric W. Biederman <ebiederm@xmission.com> > Andi Kleen <ak@suse.de> > Status : problem is being debugged Currently I'm at a loss why the cross cpu fork lm_bench numbers should get worse when you simply double NR_IRQS. As far as I can determine nothing on that code path is directly affected by that change. Eric - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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