From: Eric Wong <normalperson@yhbt.net>
To: kgio@librelist.com
Subject: Re: [PATCH 3/3] add `#kgio_writev` and `#kgio_trywritev`
Date: Thu, 31 May 2012 14:56:02 -0700 [thread overview]
Message-ID: <20120531215602.GA27669@dcvr.yhbt.net> (raw)
In-Reply-To: 20120531211404.GA24592@dcvr.yhbt.net
Eric Wong <normalperson@yhbt.net> wrote:
> True about kgio for mainly for sockets, but 1M might be too small for
> long fat networks (high latency, high bandwidth).
>
> /proc/sys/net/ipv4/tcp_wmem on my stock Linux 3.4 system says the
> write buffer can grow up to 4M.
I've checked some setups I use (75-120ms over 1 gigabit) and those have
the max tcp_wmem set to 16M(!). I've also known (and pity) folks that
have to deal with ~500ms latency on their LFNs.
next prev parent reply other threads:[~2012-05-31 21:56 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 13:56 [PATCH 1/3] Fix UnixClientReadServerWrite test class name Sokolov Yura 'funny-falcon
2012-05-30 13:56 ` [PATCH 2/3] use rb_str_subseq for tail string on write Sokolov Yura 'funny-falcon
2012-05-30 18:57 ` Eric Wong
2012-05-30 19:29 ` Юрий Соколов
2012-05-30 13:56 ` [PATCH 3/3] add `#kgio_writev` and `#kgio_trywritev` Sokolov Yura 'funny-falcon
2012-05-30 19:55 ` Юрий Соколов
2012-05-30 20:38 ` Eric Wong
2012-05-31 6:16 ` Юрий Соколов
2012-05-31 21:10 ` Eric Wong
2012-05-30 20:39 ` Eric Wong
2012-05-31 6:26 ` Юрий Соколов
2012-05-31 21:14 ` Eric Wong
2012-05-31 21:56 ` Eric Wong [this message]
2012-05-31 9:00 ` Sokolov Yura 'funny-falcon
2012-05-31 21:19 ` Eric Wong
2012-06-01 6:14 ` Юрий Соколов
2012-06-01 7:55 ` Eric Wong
2012-06-01 9:42 ` [PATCH] " Sokolov Yura 'funny-falcon
2012-06-01 19:20 ` Eric Wong
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