Messages in this thread | | | Date | Tue, 20 Dec 2005 11:29:30 -0500 (EST) | From | Steven Rostedt <> | Subject | Re: [PATCH RT 00/02] SLOB optimizations |
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On Tue, 20 Dec 2005, Ingo Molnar wrote: > > Tests: > > ===== > > could you also post the output of 'size mm/slob.o', with and without > these patches, with CONFIG_EMBEDDED and CONFIG_CC_OPTIMIZE_FOR_SIZE > enabled? (and with all debugging options disabled) Both the UP and the > SMP overhead would be interesting to see. >
Well, there is definitely a hit there:
rt (slob new): size mm/slob.o text data bss dec hex filename 2051 112 233 2396 95c mm/slob.o
without size mm/slob.o text data bss dec hex filename 1331 120 8 1459 5b3 mm/slob.o
rt smp (slob new) size mm/slob.o text data bss dec hex filename 2297 120 233 2650 a5a mm/slob.o
without size mm/slob.o text data bss dec hex filename 1573 140 8 1721 6b9 mm/slob.o
So, should this be a third memory managment system? A fast_slob?
Just for kicks here's slab.o:
rt: size mm/slab.o text data bss dec hex filename 8896 556 144 9596 257c mm/slab.o
rt smp: size mm/slab.o text data bss dec hex filename 9679 640 84 10403 28a3 mm/slab.o
So there's still a great improvement on that (maybe not the bss though).
-- Steve
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