From: "Mr. Berkley Shands" <bshands@exegy.com>
To: "linux-kernel" <linux-kernel@vger.kernel.org>
Subject: low priority 2.6.29 curiosity in interrupt time accounting
Date: Thu, 26 Mar 2009 08:49:39 -0500 [thread overview]
Message-ID: <49CB87F3.7060506@exegy.com> (raw)
Under 2.6.28-8, top reports up to 78% "hi" hard interrupt time when (not
using
NAPI) on heavy network traffic. top also reports up to 38% "hi" time for
heavy infiniband traffic.
Under 2.6.29-0, top reports NO time in "si" or "hi", 100% idle, even while
processing the exact same heavy I/O load.
Is top not looking in the right place or did something else move?
The system load averages look right for the number of threads active.
Berkley
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reply other threads:[~2009-03-26 13:49 UTC|newest]
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