Date: Mon, 14 Aug 2017 14:10:06 -0700 From: Adrian Chadd <adrian.chadd@gmail.com> To: Mori Hiroki <yamori813@yahoo.co.jp> Cc: "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> Subject: Re: performance by endian Message-ID: <CAJ-Vmo=fkYZ=FZrisrjZ9W=MFJd85z=UiEQBBF-j8SVx=PLnvA@mail.gmail.com> In-Reply-To: <539086.28647.qm@web101720.mail.ssk.yahoo.co.jp> References: <319927.83012.qm@web101708.mail.ssk.yahoo.co.jp> <CAJ-VmomwtjgPjR-1GLsbXm7g%2Bxo5Mf1CMnXcqXED_-_vgWdsWA@mail.gmail.com> <539086.28647.qm@web101720.mail.ssk.yahoo.co.jp>
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hm, which DDR bus does it have? -adrian On 25 July 2017 at 19:09, Mori Hiroki <yamori813@yahoo.co.jp> wrote: > Hi > > > Sorry I talk about AR9331 soc. > > I check boot log. > > RT3050 is this. > > > Cache info: > picache_stride =3D 4096 > picache_loopcount =3D 8 > pdcache_stride =3D 4096 > pdcache_loopcount =3D 4 > cpu0: MIPS Technologies processor v76.150 > MMU: Standard TLB, 32 entries (4K 16K 64K 256K 1M 16M 64M 256M pg sizes= ) > L1 i-cache: 4 ways of 256 sets, 32 bytes per line > L1 d-cache: 4 ways of 128 sets, 32 bytes per line > L2 cache: disabled Config1=3D0xbea3319e<PerfCount,WatchRegs,MIPS16,EJTA= G> > Config2=3D0x80000000 > Config3=3D0x420 > > AR9331 is this. > > Cache info: > picache_stride =3D 4096 > picache_loopcount =3D 16 > pdcache_stride =3D 4096 > pdcache_loopcount =3D 8 > max line size =3D 32 > cpu0: MIPS Technologies processor v116.147 > MMU: Standard TLB, 16 entries (4K 16K 64K 256K 1M 16M 64M 256M pg sizes= ) > L1 i-cache: 4 ways of 512 sets, 32 bytes per line > L1 d-cache: 4 ways of 256 sets, 32 bytes per line > L2 cache: disabled > Config1=3D0x9ee3519e<PerfCount,WatchRegs,MIPS16,EJTAG> > Config2=3D0x80000000 > Config3=3D0x20 > Config7=3D0x0 > > I seem AR9331 have more cache than RT3050. > > awk script is this. > > BEGIN { > printf "%d=C2=A5n", fib(32) > } > > function fib(n) { > if (n < 2) return n > return fib(n - 2) + fib(n - 1) > } > > ----- Original Message ----- >> From: Adrian Chadd <adrian.chadd@gmail.com> >> To: Mori Hiroki <yamori813@yahoo.co.jp> >> Cc: "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> >> Date: 2017/7/26, Wed 02:14 >> Subject: Re: performance by endian >> >> well, how much cache, how much out-of-order is it? The AR9330 SoC has >> very limited cache :( >> >> >> >> -adrian >> >> >> On 24 July 2017 at 00:53, Mori Hiroki <yamori813@yahoo.co.jp> wrote: >>> Hi. >>> >>> I checked fib(32) by awk script. >>> >>> RT3050 is 80 sec >>> AR9330 is 99 sec >>> >>> >>> AR9330 is newer and clock is hight. But slow. >>> >>> Why this result ? >>> >>> I suspect this is endian issue. >>> >>> I have problem mruby performance at Atheros SOC. >>> It is slow almost double from same clock little >>> endian mips soc. >>> >>> Regards >>> >>> Hiroki Mori >>> _______________________________________________ >>> freebsd-mips@freebsd.org mailing list >>> https://lists.freebsd.org/mailman/listinfo/freebsd-mips >>> To unsubscribe, send any mail to >> "freebsd-mips-unsubscribe@freebsd.org" >>
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