52 lines
1.5 KiB
Diff
52 lines
1.5 KiB
Diff
From b79f34df37d605954beaa381e6309d50386434b2 Mon Sep 17 00:00:00 2001
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Message-Id: <b79f34df37d605954beaa381e6309d50386434b2.1587532692.git.kamalesh@linux.vnet.ibm.com>
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In-Reply-To: <cover.1587532692.git.kamalesh@linux.vnet.ibm.com>
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References: <cover.1587532692.git.kamalesh@linux.vnet.ibm.com>
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From: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
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Date: Tue, 21 Apr 2020 08:02:51 -0500
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Subject: [PATCH V4 07/14] lparstat: Add helper function to calculate delta
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To: powerpc-utils-devel@googlegroups.com
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Cc: Tyrel Datwyler <tyreld@linux.ibm.com>,
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Nathan Lynch <nathanl@linux.ibm.com>,
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Naveen N . Rao <naveen.n.rao@linux.vnet.ibm.com>,
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Gautham R . Shenoy <ego@linux.vnet.ibm.com>,
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Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
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Add a helper function for one of the most often used arithmetics of
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calculating delta of a sysentry.
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Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
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---
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src/lparstat.c | 15 +++++++++++++++
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1 file changed, 15 insertions(+)
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diff --git a/src/lparstat.c b/src/lparstat.c
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index 7c55a8c..152e5fa 100644
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--- a/src/lparstat.c
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+++ b/src/lparstat.c
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@@ -226,6 +226,21 @@ static void sig_int_handler(int signal)
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exit(1);
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}
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+long long get_delta_value(char *se_name)
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+{
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+ long long value, old_value;
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+ struct sysentry *se;
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+
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+ se = get_sysentry(se_name);
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+ if (se->value[0] == '\0')
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+ return 0LL;
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+
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+ value = strtoll(se->value, NULL, 0);
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+ old_value = strtoll(se->old_value, NULL, 0);
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+
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+ return (value - old_value);
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+}
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+
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void get_time()
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{
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struct timeval t;
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--
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2.25.3
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