From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Tejun Heo <tj@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Amir Vadai <amirv@mellanox.com>,
linux-kernel@vger.kernel.org,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Subject: Re: [PATCH resend] cpumask: don't perform while loop in cpumask_next_and()
Date: Mon, 15 Jun 2015 23:33:52 +0900 [thread overview]
Message-ID: <20150615143352.GB538@swordfish> (raw)
In-Reply-To: <20150615134008.GA4447@pd.tnic>
On (06/15/15 15:40), Borislav Petkov wrote:
[..]
>
> That's some fat stack with 8K CPUs:
>
> cpumask_next_and:
> pushq %rbp #
> movq %rsp, %rbp #,
> pushq %rbx #
> movl %edi, %ebx # n, n
> leaq -1040(%rbp), %rdi #, tmp106
> subq $1032, %rsp #,
> ^^^^^
>
> Lovely.
>
Oh, wow, 8K cpus...
No excuse.
-ss
next prev parent reply other threads:[~2015-06-15 14:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-01 15:22 [PATCH resend] cpumask: don't perform while loop in cpumask_next_and() Sergey Senozhatsky
2015-06-15 13:12 ` Peter Zijlstra
2015-06-15 13:40 ` Borislav Petkov
2015-06-15 14:33 ` Sergey Senozhatsky [this message]
2015-06-15 14:43 ` Borislav Petkov
2015-06-15 14:26 ` Sergey Senozhatsky
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150615143352.GB538@swordfish \
--to=sergey.senozhatsky@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=amirv@mellanox.com \
--cc=bp@alien8.de \
--cc=davem@davemloft.net \
--cc=linux-kernel@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=sergey.senozhatsky.work@gmail.com \
--cc=tj@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox