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Re: [PATCH] msleep() with hrtimers
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From:
Roman Zippel <zippel@...>
To: Jonathan Corbet <corbet@...>
Cc: <linux-kernel@...>, Thomas Gleixner <tglx@...>, <akpm@...>, Ingo Molnar <mingo@...>
Subject:
Re: [PATCH] msleep() with hrtimers
Date: Friday, August 3, 2007 - 3:19 pm
Hi, On Fri, 3 Aug 2007, Jonathan Corbet wrote:
quoted text
> Most comments last time were favorable. The one dissenter was Roman, > who worries about the overhead of using hrtimers for this operation; my > understanding is that he would rather see a really_msleep() function for > those who actually want millisecond resolution. I'm not sure how to > characterize what the cost could be, but it can only be buried by the > fact that every call sleeps for some number of milliseconds. On my > system, the several hundred total msleep() calls can't cause any real > overhead, and almost all happen at initialization time.
The main point is still that these are two _different_ APIs for different usages, so I still prefer to add a hrsleep() instead. bye, Roman -
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Messages in current thread:
[PATCH] msleep() with hrtimers
, Jonathan Corbet
, (Fri Aug 3, 2:37 pm)
Re: [PATCH] msleep() with hrtimers
, Andrew Morton
, (Wed Nov 28, 6:29 am)
Re: [PATCH] msleep() with hrtimers
, Andrew Morton
, (Thu Aug 9, 3:16 am)
Re: [linux-usb-devel] [PATCH] msleep() with hrtimers
, Alan Stern
, (Thu Aug 9, 11:08 am)
Re: [PATCH] msleep() with hrtimers
, Roman Zippel
, (Fri Aug 3, 3:19 pm)
Re: [PATCH] msleep() with hrtimers
, Arjan van de Ven
, (Fri Aug 3, 3:46 pm)
Re: [PATCH] msleep() with hrtimers
, Roman Zippel
, (Fri Aug 3, 3:58 pm)
Re: [PATCH] msleep() with hrtimers
, Arjan van de Ven
, (Fri Aug 3, 7:53 pm)
Re: [PATCH] msleep() with hrtimers
, Roman Zippel
, (Fri Aug 3, 11:00 pm)
Re: [PATCH] msleep() with hrtimers
, Arjan van de Ven
, (Sat Aug 4, 3:19 pm)
Re: [PATCH] msleep() with hrtimers
, Roman Zippel
, (Sun Aug 5, 8:09 pm)
Re: [PATCH] msleep() with hrtimers
, Arjan van de Ven
, (Sun Aug 5, 8:43 pm)
Re: [PATCH] msleep() with hrtimers
, Roman Zippel
, (Sun Aug 5, 9:03 pm)
Re: [PATCH] msleep() with hrtimers
, Arjan van de Ven
, (Mon Aug 6, 1:39 am)
Re: [PATCH] msleep() with hrtimers
, Roman Zippel
, (Mon Aug 6, 6:03 am)
Re: [PATCH] msleep() with hrtimers
, Manu Abraham
, (Mon Aug 6, 6:20 am)
Re: [PATCH] msleep() with hrtimers
, Arjan van de Ven
, (Mon Aug 6, 11:53 am)
Re: [PATCH] msleep() with hrtimers
, Roman Zippel
, (Tue Aug 7, 8:45 am)
Re: [PATCH] msleep() with hrtimers
, Arjan van de Ven
, (Wed Aug 8, 12:15 am)
Re: [PATCH] msleep() with hrtimers
, Denis Vlasenko
, (Thu Aug 9, 3:31 pm)
Re: [PATCH] msleep() with hrtimers
, Denis Vlasenko
, (Thu Aug 9, 4:01 pm)
Re: [PATCH] msleep() with hrtimers
, Manu Abraham
, (Tue Aug 7, 6:40 am)
Re: [PATCH] msleep() with hrtimers
, Andrew Morton
, (Tue Aug 7, 3:40 pm)
Re: [PATCH] msleep() with hrtimers
, Roman Zippel
, (Tue Aug 7, 7:16 pm)
Re: [PATCH] msleep() with hrtimers
, Andrew Morton
, (Tue Aug 7, 7:29 pm)
Re: [PATCH] msleep() with hrtimers
, Roman Zippel
, (Tue Aug 7, 11:47 pm)
Re: [PATCH] msleep() with hrtimers
, Andrew Morton
, (Wed Aug 8, 12:14 am)
Re: [PATCH] msleep() with hrtimers
, Roman Zippel
, (Thu Aug 9, 6:31 pm)
Re: [PATCH] msleep() with hrtimers
, Andi Kleen
, (Wed Aug 8, 7:55 am)
Re: [PATCH] msleep() with hrtimers
, Manu Abraham
, (Wed Aug 8, 7:09 am)
Re: [PATCH] msleep() with hrtimers
, Andi Kleen
, (Wed Aug 8, 7:52 am)
Re: [PATCH] msleep() with hrtimers
, Manu Abraham
, (Wed Aug 8, 7:59 am)
Re: [PATCH] msleep() with hrtimers
, Ingo Molnar
, (Fri Aug 3, 2:54 pm)
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