From: Sitsofe Wheeler <sitsofe@yahoo.com>
To: Alexey Starikovskiy <aystarik@gmail.com>
Cc: linux-acpi@vger.kernel.org
Subject: Re: Reading EeePC900 battery info causes stalls
Date: Thu, 25 Sep 2008 12:56:10 +0100 [thread overview]
Message-ID: <48DB7C5A.6070900@yahoo.com> (raw)
In-Reply-To: <48DB710A.2060206@gmail.com>
Alexey Starikovskiy wrote:
> acpi_ps_parse_aml() is called not so often (~10000usec), so maybe it is
> a "sweet spot"
The latency is pretty bad with this patch (assuming you did not want it
applied on top of your previous patch)
Here's the tail end of a full trace:
http://sucs.org/~sits/test/eeepc-debug/20080925/1250/latency_trace_all_tail.gz
(3.3Mbytes but close 100Mbytes when decompressed)
latency: 2912285 us, #1000038/5344107, CPU#0 | (M:desktop VP:0, KP:0,
SP:0 HP:0
)
Here's a complete (but filtered) trace:
http://sucs.org/~sits/test/eeepc-debug/20080925/1250/latency_trace.gz
latency: 315814 us, #227600/227600, CPU#0 | (M:desktop VP:0, KP:0,
SP:0 HP:0)
--
Sitsofe | http://sucs.org/~sits/
next prev parent reply other threads:[~2008-09-25 11:56 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-24 17:52 Reading EeePC900 battery info causes stalls Sitsofe Wheeler
2008-09-25 8:47 ` Alexey Starikovskiy
2008-09-25 9:35 ` Sitsofe Wheeler
2008-09-25 9:36 ` Sitsofe Wheeler
2008-09-25 9:54 ` Alexey Starikovskiy
2008-09-25 11:07 ` Alexey Starikovskiy
2008-09-25 11:56 ` Sitsofe Wheeler [this message]
2008-09-25 12:01 ` Alexey Starikovskiy
2008-09-25 14:57 ` Alexey Starikovskiy
2008-09-25 17:30 ` Sitsofe Wheeler
2008-09-25 11:17 ` Sitsofe Wheeler
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