From: Patrick McHardy <kaber@trash.net>
To: "David S. Miller" <davem@redhat.com>
Cc: shemminger@osdl.org, netdev@oss.sgi.com, devik@cdi.cz
Subject: Re: [PATCH 2.6]: Make packet scheduler clock source configurable
Date: Fri, 23 Jul 2004 01:36:22 +0200 [thread overview]
Message-ID: <41004F76.1080807@trash.net> (raw)
In-Reply-To: <20040721143110.4ab944bf.davem@redhat.com>
David S. Miller wrote:
> This looks great.
>
> As you mention some platforms return zero, for example sparc32,
> for get_cycles().
>
> I suggest we just expand the dependency list for NET_SCH_CLK_TSC
> to include SPARC64 PPC64 and perhaps some other easy to verify
> as having a working get_cycles() implementation. I believe that
> as long as it increments at some rate >= jiffies, the psched
> calibration will get things into a working state.
It needs to increment at slightly above 1Mhz, otherwise delay will
be zero after this division and everything will fall apart:
delay /= rdelay.
> A lot of patches have been posted in this area and I'm losing
> track of what to apply first etc. Can you repost your work
> one change at a time? Thanks.
The following two patches remove some dead timer code and
change PSCHED_GET_TIME to use get_cycles. I'm going to send
the configurable clock-source patch tomorrow after checking
the arches.
Regards
Patrick
next prev parent reply other threads:[~2004-07-22 23:36 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-13 2:21 [PATCH 2.6]: Make packet scheduler clock source configurable Patrick McHardy
2004-07-13 3:35 ` shemminger
2004-07-13 3:50 ` David S. Miller
[not found] ` <40F4862D.3070802@trash.net>
[not found] ` <40F4AC8B.40706@trash.net>
2004-07-21 21:31 ` David S. Miller
2004-07-22 23:36 ` Patrick McHardy [this message]
2004-07-23 0:17 ` David S. Miller
2004-07-23 0:52 ` Patrick McHardy
2004-07-23 1:00 ` Patrick McHardy
2004-07-23 1:03 ` David S. Miller
2004-07-23 17:14 ` Patrick McHardy
2004-07-23 17:53 ` Stephen Hemminger
2004-07-23 20:54 ` David S. Miller
2004-07-23 23:18 ` Patrick McHardy
2004-07-25 6:27 ` David S. Miller
2004-07-25 21:56 ` Patrick McHardy
2004-07-26 0:02 ` David S. Miller
2004-07-23 20:57 ` David S. Miller
2004-07-23 23:21 ` Patrick McHardy
2004-07-13 16:16 ` Stephen Hemminger
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