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From: Michael Ellerman <mpe@ellerman.id.au>
To: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Cc: Matthew Wilcox <willy@infradead.org>,
	Paul Mackerras <paulus@au1.ibm.com>,
	linuxppc-dev@lists.ozlabs.org, Anton Blanchard <anton@samba.org>
Subject: Re: [PATCH 1/2] powerpc: string: implement optimized memset variants
Date: Wed, 29 Mar 2017 22:36:28 +1100	[thread overview]
Message-ID: <87a884jow3.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20170328102109.GC4762@naverao1-tp.localdomain>

"Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> writes:
> I also tested zram today with the command shared by Wilcox:
>
> without patch:       1.493782568 seconds time elapsed    ( +-  0.08% )
> with patch:          1.408457577 seconds time elapsed    ( +-  0.15% )
>
> ... which also shows an improvement along the same lines as x86, as 
> reported by Minchan Kim.

I got:

  1.344847397 seconds time elapsed                                          ( +-  0.13% )

Using the C versions. Can you also benchmark those on your setup so we
can compare? So basically apply Matt's series but not your 2.

cheers

  reply	other threads:[~2017-03-29 11:36 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-20 21:14 Optimised memset64/memset32 for powerpc Matthew Wilcox
2017-03-20 21:23 ` Benjamin Herrenschmidt
2017-03-21 12:23 ` Christophe LEROY
2017-03-21 13:29   ` Matthew Wilcox
2017-03-21 16:45     ` Segher Boessenkool
2017-03-21 21:26     ` Benjamin Herrenschmidt
2017-03-22 13:18       ` Matthew Wilcox
2017-03-22 19:30         ` Matthew Wilcox
2017-03-27 19:37           ` Naveen N. Rao
2017-03-27 19:37             ` [PATCH 1/2] powerpc: string: implement optimized memset variants Naveen N. Rao
2017-03-28  0:44               ` Michael Ellerman
2017-03-28 10:21                 ` Naveen N. Rao
2017-03-29 11:36                   ` Michael Ellerman [this message]
2017-03-30  7:16                     ` Naveen N. Rao
2017-04-04 12:00                       ` Michael Ellerman
2017-04-18  6:45                         ` Michael Ellerman
2017-04-05  5:51                       ` PrasannaKumar Muralidharan
2017-04-12 15:05                         ` Naveen N. Rao
2017-08-18 12:50               ` [1/2] " Michael Ellerman
2017-03-27 19:37             ` [PATCH 2/2] powerpc: bpf: use memset32() to pre-fill traps in BPF page(s) Naveen N. Rao

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