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From: tedheadster <>
To: Thomas Gleixner <>,
	Steven Rostedt <>
Cc: Linux Kernel Mailing List <>
Subject: sar reporting zero cpu usage for everything
Date: Mon, 30 Apr 2018 16:13:51 -0400	[thread overview]
Message-ID: <> (raw)

Thomas and Steven,
  I am running the 4.16 kernel and I found some odd behavior in sar.
It shows zero usage time in ALL categories.

12:12:36        CPU     %user     %nice   %system   %iowait    %steal     %idle
12:34:10        all      0.00      0.00      0.00      0.00      0.00      0.00
12:58:04        all      0.00      0.00      0.00      0.00      0.00      0.00
13:06:01        all      0.00      0.00      0.00      0.00      0.00      0.00

This is run every two minutes via cron with '/usr/lib/sa/sa1 30 4 -S DISK'.

You both helped me before with a similar problem, so I thought I would
ask you first for a place to start debugging this.

(apologies, had to be re-sent in text-only mode)

- Matthew Whitehead

                 reply	other threads:[~2018-04-30 20:14 UTC|newest]

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