From: Ben Greear <greearb@candelatech.com>
To: Mark Mielke <mark@mark.mielke.cc>
Cc: Stephen Anthony <stephena@cs.mun.ca>, linux-kernel@vger.kernel.org
Subject: Re: What's the timeslice size for kernel 2.6.0-test2, IA32?
Date: Fri, 01 Aug 2003 12:29:02 -0700 [thread overview]
Message-ID: <3F2ABF7E.4060006@candelatech.com> (raw)
In-Reply-To: <20030801183450.GC20001@mark.mielke.cc>
Mark Mielke wrote:
> On Fri, Aug 01, 2003 at 02:04:46PM -0230, Stephen Anthony wrote:
>
>>It would be great if sleeps were 1ms accurate instead of 10ms. It would
>>make synchronization code a lot easier.
>
>
> Doesn't this depend on what HZ you define for the kernel?
>
> If you want 1ms sleep, just set HZ to 1000HZ+, and give your process a
> high priority?
>
> mark
>
From user space, at least, you can configure /dev/rtc to 1024HZ and then
select on it's file descriptor. That will give you fairly reliable 1ms (or so)
sleeps, especially if you set your niceness to a high-priority setting.
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
next prev parent reply other threads:[~2003-08-01 19:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-01 16:34 Re: What's the timeslice size for kernel 2.6.0-test2, IA32? Stephen Anthony
2003-08-01 18:34 ` Mark Mielke
2003-08-01 19:29 ` Ben Greear [this message]
2003-08-02 9:25 ` george anzinger
-- strict thread matches above, loose matches on Subject: below --
2003-08-01 15:51 Stephen Anthony
2003-08-01 16:13 ` Con Kolivas
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