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authorStefano Brivio <sbrivio@redhat.com>2021-10-21 01:24:22 +0200
committerStefano Brivio <sbrivio@redhat.com>2021-10-21 01:24:22 +0200
commit6257a2752e39c55bfb03d6db94af0c6033feb8df (patch)
treea6278d0f1c35e579c3421577ee295312389aa649 /test/perf/pasta_tcp
parent819d13bb92b8e0430e57039f82b75e982f2a728e (diff)
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test/perf: Try sourcing maximum scaling frequency from cpufreq
On most recent CPUs, that's a better indication of all-core turbo frequency, or non-turbo frequency, than /proc/cpuinfo. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'test/perf/pasta_tcp')
-rw-r--r--test/perf/pasta_tcp5
1 files changed, 4 insertions, 1 deletions
diff --git a/test/perf/pasta_tcp b/test/perf/pasta_tcp
index ac4cd60..a330bb4 100644
--- a/test/perf/pasta_tcp
+++ b/test/perf/pasta_tcp
@@ -25,7 +25,10 @@ ns sysctl -w net.ipv4.tcp_timestamps=0
set THREADS 2
set STREAMS 2
set OPTS -Z -w 4M -l 1M -P __STREAMS__ -i1 -t30 -O5 --pacing-timer 10000
-hout FREQ (echo "scale=1"; sed -n 's/cpu MHz.*: \([0-9]*\)\..*$/(\1+10^2\/2)\/10^3/p' /proc/cpuinfo) | bc -l | head -n1
+
+hout FREQ_PROCFS (echo "scale=1"; sed -n 's/cpu MHz.*: \([0-9]*\)\..*$/(\1+10^2\/2)\/10^3/p' /proc/cpuinfo) | bc -l | head -n1
+hout FREQ_CPUFREQ (echo "scale=1"; printf '( %i + 10^5 / 2 ) / 10^6\n' $(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq) ) | bc -l
+hout FREQ [ -n "__FREQ_CPUFREQ__" ] && echo __FREQ_CPUFREQ__ || echo __FREQ_PROCFS__
info Throughput in Gbps, latency in µs, __THREADS__ threads at __FREQ__ GHz, __STREAMS__ streams each