Messages in this thread |  | | Date | Tue, 17 Sep 2002 19:22:42 -0700 | From | William Lee Irwin III <> | Subject | Re: [patch] lockless, scalable get_pid(), for_each_process() elimination, 2.5.35-BK |
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From: William Lee Irwin III <wli@holomorphy.com> > The issues addressed here are extremely important for the workloads I > must support.
On Tue, Sep 17, 2002 at 06:27:22PM -0700, David S. Miller wrote: > Have you published test tools that emulate your workload? > These would be very useful, probably to find problems even > outside the scope of pid lookups.
By and large I've been using existing tools, for instance, multiple tiobench instances to obtain a large task count. The test cases I've had to construct by hand are generally meant to trigger pagetable OOM, which I've been assigned to do something about. In general, I attempt to simulate the VM and I/O characteristics of databases. Sometimes I have to get a bit inventive, e.g. recent 2*dbench 512 on tmpfs test.
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