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From 79866c4b187e9ccf37fe333e9865a8575f4a3a16 Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Wed, 6 Jun 2018 10:10:20 +0200
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Subject: [PATCH 169/173] lscpu: fix mzx/min MHz reporting
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Addresses: http://bugzilla.redhat.com/show_bug.cgi?id=1579439
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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sys-utils/lscpu.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++--
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1 file changed, 48 insertions(+), 2 deletions(-)
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diff --git a/sys-utils/lscpu.c b/sys-utils/lscpu.c
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index 1ee73f34a..4c15de1d4 100644
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--- a/sys-utils/lscpu.c
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+++ b/sys-utils/lscpu.c
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@@ -1251,6 +1251,52 @@ read_configured(struct lscpu_desc *desc, int idx)
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desc->configured[idx] = path_read_s32(_PATH_SYS_CPU "/cpu%d/configure", num);
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}
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+/* Read overall maximum frequency of cpu */
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+static char *
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+cpu_max_mhz(struct lscpu_desc *desc, char *buf, size_t bufsz)
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+{
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+ int i;
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+ float cpu_freq = 0.0;
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+ size_t setsize = CPU_ALLOC_SIZE(maxcpus);
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+
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+ if (desc->present) {
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+ for (i = 0; i < desc->ncpuspos; i++) {
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+ if (CPU_ISSET_S(real_cpu_num(desc, i), setsize, desc->present)
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+ && desc->maxmhz[i]) {
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+ float freq = atof(desc->maxmhz[i]);
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+
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+ if (freq > cpu_freq)
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+ cpu_freq = freq;
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+ }
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+ }
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+ }
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+ snprintf(buf, bufsz, "%.4f", cpu_freq);
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+ return buf;
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+}
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+
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+/* Read overall minimum frequency of cpu */
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+static char *
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+cpu_min_mhz(struct lscpu_desc *desc, char *buf, size_t bufsz)
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+{
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+ int i;
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+ float cpu_freq = -1.0;
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+ size_t setsize = CPU_ALLOC_SIZE(maxcpus);
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+
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+ if (desc->present) {
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+ for (i = 0; i < desc->ncpuspos; i++) {
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+ if (CPU_ISSET_S(real_cpu_num(desc, i), setsize, desc->present)
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+ && desc->minmhz[i]) {
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+ float freq = atof(desc->minmhz[i]);
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+
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+ if (cpu_freq < 0.0 || freq < cpu_freq)
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+ cpu_freq = freq;
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+ }
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+ }
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+ }
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+ snprintf(buf, bufsz, "%.4f", cpu_freq);
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+ return buf;
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+}
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+
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static void
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read_max_mhz(struct lscpu_desc *desc, int idx)
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{
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@@ -1898,9 +1944,9 @@ print_summary(struct lscpu_desc *desc, struct lscpu_modifier *mod)
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if (desc->static_mhz)
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print_s(_("CPU static MHz:"), desc->static_mhz);
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if (desc->maxmhz && desc->maxmhz[0])
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- print_s(_("CPU max MHz:"), desc->maxmhz[0]);
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+ print_s(_("CPU max MHz:"), cpu_max_mhz(desc, buf, sizeof(buf)));
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if (desc->minmhz && desc->minmhz[0])
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- print_s(_("CPU min MHz:"), desc->minmhz[0]);
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+ print_s(_("CPU min MHz:"), cpu_min_mhz(desc, buf, sizeof(buf)));
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if (desc->bogomips)
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print_s(_("BogoMIPS:"), desc->bogomips);
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if (desc->virtflag) {
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--
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2.14.4
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