In message <alpine.lrh.2.00.0904061430090.11...@vixen.sonytel.be> you wrote: > On Fri, 3 Apr 2009, Kumar Gala wrote: > > On Apr 3, 2009, at 7:08 AM, Geert Uytterhoeven wrote: > > >Finally (after ca. 1.5 years), he're an updated version of my patch to k= > eep > > >track of emulated instructions. In the light of Kumar's `Emulate enough= > of > > >SPE > > >instructions to make gcc happy' patch, he probably also wants to keep tr= > ack > > >of > > >the actual runtime overhead. > > > > > >Changes since last version: > > > - arch/powerpc/kernel/sysfs.c is now compiled on ppc32, so we can provi= > de > > > counters in sysfs on ppc32, too, > > > - WARN_EMULATED() is a no-op if CONFIG_SYSCTL is disabled, > > > - Add warnings for altivec, > > > - Add warnings for recently introduced emulation of vsx and isel > > > instructions. > > = > > > pretty cool. Do we think counters should be sysfs or debugfs? > > What do you prefer? > > On MIPS, unaligned exception handling control is in debugfs.
Would per process counters be too hard? Stick them in the thread_struct and export them via /proc/<pid>/emulated. Mikey > > > Also it would be nice to be able to zero out the counters. > > By writing to the individual counters, or by writing to a global `clear' fi= > le? > > BTW, should the individual counters be readable by everybody? Currently the= > y're > readable by root only. > > With kind regards, > > Geert Uytterhoeven > Software Architect > > Sony Techsoft Centre Europe > The Corporate Village =B7 Da Vincilaan 7-D1 =B7 B-1935 Zaventem =B7 Belgium > > Phone: +32 (0)2 700 8453 > Fax: +32 (0)2 700 8622 > E-mail: geert.uytterhoe...@sonycom.com > Internet: http://www.sony-europe.com/ > > A division of Sony Europe (Belgium) N.V. > VAT BE 0413.825.160 =B7 RPR Brussels > Fortis =B7 BIC GEBABEBB =B7 IBAN BE41293037680010 > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-dev > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
