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From: Florian Westphal <fw@strlen.de>
To: Li RongQing <lirongqing@baidu.com>
Cc: netdev@vger.kernel.org, steffen.klassert@secunet.com
Subject: Re: [PATCH][v2] xfrm: replace NR_CPU with nr_cpu_ids
Date: Tue, 19 Jun 2018 09:53:49 +0200	[thread overview]
Message-ID: <20180619075349.sgs7xr7aafcdcfcy@breakpoint.cc> (raw)
In-Reply-To: <1529392300-8298-1-git-send-email-lirongqing@baidu.com>

Li RongQing <lirongqing@baidu.com> wrote:
> The default NR_CPUS can be very large, but actual possible nr_cpu_ids
> usually is very small. For some x86 distribution, the NR_CPUS is 8192
> and nr_cpu_ids is 4, so replace NR_CPU to save some memory

Steffen,

I will soon submit a patch to remove the percpu cache; removal
improved performance for at least one user (and by quite a sizeable
amount).

Would you consider such removal for ipsec or ipsec-next?
If -next, consider applying this patch for ipsec.git.

Otherwise consider not applying this, as the code will go away soon.


Thanks,
Florian

  parent reply	other threads:[~2018-06-19  7:53 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-19  7:11 [PATCH][v2] xfrm: replace NR_CPU with nr_cpu_ids Li RongQing
2018-06-19  7:48 ` Yunsheng Lin
2018-06-19  7:53 ` Florian Westphal [this message]
2018-06-19 12:17   ` Steffen Klassert
2018-06-20  9:55     ` Florian Westphal

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