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From 81ef06797b16d08a4558a41891b9d9421a0a96f8 Mon Sep 17 00:00:00 2001
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From: Breno Leitao <breno.leitao@gmail.com>
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Date: Mon, 31 Oct 2016 09:23:59 -0400
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Subject: [PATCH] sar: Improve cpuinfo read for POWER architecture
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Currently CPU frequency is not being read properly on POWER archicture.
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It shows the frequency as:
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# sar -m CPU 1 5
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...
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06:30:28 AM CPU MHz
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06:30:36 AM all 0.00
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This is caused because /proc/cpuinfo is differently between Intel and
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POWER.
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This patch simply fix the parsing function (read_cpuinfo).
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Signed-off-by: Breno Leitao <breno.leitao@gmail.com>
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Resolves: #1440000
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---
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rd_stats.c | 10 ++++++----
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1 file changed, 6 insertions(+), 4 deletions(-)
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diff --git a/rd_stats.c b/rd_stats.c
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index dafd975..d8c337a 100644
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--- a/rd_stats.c
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+++ b/rd_stats.c
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@@ -1625,10 +1625,12 @@ void read_cpuinfo(struct stats_pwr_cpufreq *st_pwr_cpufreq, int nbr)
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if (!strncmp(line, "processor\t", 10)) {
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sscanf(strchr(line, ':') + 1, "%d", &proc_nb);
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}
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-
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- else if (!strncmp(line, "cpu MHz\t", 8)) {
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- sscanf(strchr(line, ':') + 1, "%u.%u", &ifreq, &dfreq);
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-
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+
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+ /* Entry in /proc/cpuinfo is different between Intel and Power architectures */
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+ else if (!strncmp(line, "cpu MHz\t", 8) ||
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+ !strncmp(line, "clock\t", 6)) {
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+ sscanf(strchr(line, ':') + 1, "%u.%u", &ifreq, &dfreq);
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+
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if (proc_nb < (nbr - 1)) {
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/* Save current CPU frequency */
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st_pwr_cpufreq_i = st_pwr_cpufreq + proc_nb + 1;
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--
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2.13.6
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