From: "Christopher S. Aker" <caker@theshore.net>
To: uml-devel <user-mode-linux-devel@lists.sourceforge.net>
Subject: Re: [uml-devel] [PATCH] I/O-Request Token Bucket Limiter
Date: Sun, 28 Mar 2004 03:52:30 -0600 [thread overview]
Message-ID: <007001c414aa$6349e700$0201a8c0@hawk> (raw)
In-Reply-To: 004901c414a3$f4d28a80$0201a8c0@hawk
> Our sample shows io_tokens being negative, but - while waiting for the bucket
> to be re-supplied, requests will still dribble through no faster than
> token_refill req/second. Or, perhaps this is due to inaccuracies of nanosleep
> or a bug in my logic.
Actually, this makes sense. The threshold for when we start to nanosleep is when
io_tokens <= 0. Perhaps the threshold should be when io_tokens < token_refill.
It needs to be checked if io_tokens will continue to decrease under certain
settings and load, but I think the delays are pretty accurate.
-Chris
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next prev parent reply other threads:[~2004-03-28 9:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-28 9:06 [uml-devel] [PATCH] I/O-Request Token Bucket Limiter Christopher S. Aker
2004-03-28 9:52 ` Christopher S. Aker [this message]
2004-03-28 12:28 ` roland
2004-03-28 13:41 ` Christopher S. Aker
2004-03-28 16:18 ` roland
2004-03-28 18:26 ` BlaisorBlade
2004-05-28 11:13 ` roland
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