netdev - Re: [PATCH net-next] net: proc: speedup /proc/net/netstat

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Message-ID: <20210129224804.6cb4e348@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Fri, 29 Jan 2021 22:48:04 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH net-next] net: proc: speedup /proc/net/netstat

On Thu, 28 Jan 2021 08:21:45 -0800 Eric Dumazet wrote:
> From: Eric Dumazet <edumazet@...gle.com>
> 
> Use cache friendly helpers to better use cpu caches
> while reading /proc/net/netstat
> 
> Tested on a platform with 256 threads (AMD Rome)
> 
> Before: 305 usec spent in netstat_seq_show()
> After: 130 usec spent in netstat_seq_show()
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

The bot just doesn't like to reply to you :) If it happens
again I'll poke Konstantin. Maybe third time is the charm.

Anyway, applied a few hours ago, thank you!