On Fri, Nov 7, 2014 at 12:14 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > On Fri, Nov 07, 2014 at 11:59:26AM +0100, Sedat Dilek wrote: >> On Fri, Nov 7, 2014 at 11:43 AM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: >> > On Fri, Nov 07, 2014 at 11:35:01AM +0100, Sedat Dilek wrote: >> >> On Fri, Nov 7, 2014 at 11:29 AM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: >> >> > On Fri, Nov 07, 2014 at 11:08:41AM +0100, Sedat Dilek wrote: >> >> >> Hi, >> >> >> >> >> >> I am playing with wc-mmap [1]... (and sent a trivial patch [0]). >> >> >> >> >> >> Inspecting my logs... >> >> >> >> >> >> $ egrep 'wc|mmap' >> >> >> logs/build-and-install-log_XF86-Video-Intel-v2-99-916-137-g0aa2edb_WCMMAP_llvm-3-4-2.txt >> >> >> Experimental support: TearFree mmap(wc) >> >> >> >> >> >> $ egrep -i 'wc|mmap|write|comb' /var/log/Xorg.0.log >> >> >> [ EMPTY ] >> >> >> >> >> >> TearFree [1] can be set via an option in xorg.conf. >> >> >> Doing a very quick look into the sources, such a flag/option is not recognized. >> >> >> >> >> >> How do I see if wc-mmap is enabled/active on my desktop? >> >> > >> >> > Er, hopefully you don't notice anything except it speeds up certain >> >> > operations (quite considerably) :). You have to enable the DBG output to >> >> > see it in action, as it is quite a lowlevel feature (i.e. how we >> >> > interact with the kernel) and should not add any user visible features. >> >> > However, it does also require the kernel patch for it to be enabled. >> >> >> >> Can you point me to that kernel-patch? >> >> Is Linux v3.18-rc2+ good enough or do I need d-i-l-n / d-i-n? >> > >> >> Hmm... against which trees are those patches? >> >> > http://patchwork.freedesktop.org/patch/35049/ >> "drm/i915: Broaden application of set-domain(GTT)" >> >> ...is not applicable against d-i-f or d-i-n. > > Try > http://cgit.freedesktop.org/~ickle/linux-2.6/commit/?h=nightly&id=2b03060c7585df31e6e90fef91af4064769bf394 Here some numbers... $ diff -uprN benchmarks/x11perf-aa10text_no-wcmmap.txt benchmarks/x11perf-aa10text_wcmmap.txt --- benchmarks/x11perf-aa10text_no-wcmmap.txt 2014-11-07 12:57:49.932264840 +0100 +++ benchmarks/x11perf-aa10text_wcmmap.txt 2014-11-07 12:53:17.028273399 +0100 @@ -2,16 +2,16 @@ $ x11perf -aa10text x11perf - X11 performance program, version 1.2 The X.Org Foundation server version 11501000 on :0 from fambox -Fri Nov 7 12:56:29 2014 +Fri Nov 7 12:51:37 2014 -Sync time adjustment is 0.0814 msecs. +Sync time adjustment is 0.0817 msecs. -24000000 reps @ 0.0002 msec (4420000.0/sec): Char in 80-char aa line (Charter 10) -24000000 reps @ 0.0002 msec (4420000.0/sec): Char in 80-char aa line (Charter 10) -24000000 reps @ 0.0002 msec (4380000.0/sec): Char in 80-char aa line (Charter 10) -24000000 reps @ 0.0002 msec (4410000.0/sec): Char in 80-char aa line (Charter 10) -24000000 reps @ 0.0002 msec (4410000.0/sec): Char in 80-char aa line (Charter 10) -120000000 trep @ 0.0002 msec (4410000.0/sec): Char in 80-char aa line (Charter 10) +24000000 reps @ 0.0002 msec (4490000.0/sec): Char in 80-char aa line (Charter 10) +24000000 reps @ 0.0002 msec (4490000.0/sec): Char in 80-char aa line (Charter 10) +24000000 reps @ 0.0002 msec (4480000.0/sec): Char in 80-char aa line (Charter 10) +24000000 reps @ 0.0002 msec (4490000.0/sec): Char in 80-char aa line (Charter 10) +24000000 reps @ 0.0002 msec (4490000.0/sec): Char in 80-char aa line (Charter 10) +120000000 trep @ 0.0002 msec (4490000.0/sec): Char in 80-char aa line (Charter 10) -dileks // 07-NOV-2014 - Sedat - _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
