Messages in this thread | | | Date | Sun, 16 Aug 2009 12:31:27 +0200 | From | Nick Piggin <> | Subject | Re: [PATCH] [patch 4a/4] ipc: sem optimise simple operations |
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On Sat, Aug 15, 2009 at 06:32:14PM +0200, Manfred Spraul wrote: > It depends. After disabling inlining, including all helper functions > that differ: > > My proposal: 301 bytes for update_queue. > > "simple", only negv: 226 bytes > "simple, negv+zero: 354 bytes > simple+complex: 526 bytes. > > Thus with only +-1 simple ops, your version uses less icache. If both > +-1 and 0 ops are used, your version uses more icache.
Don't forget that in that case, your version is badly suboptimal due to the algorithmic complexity.
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