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rcutorture: Print measure of batching efficiency
This commit adds a line giving the number of grace periods, the number of batches, and the ratio. The larger the ratio, the greater the batching efficiency. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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2094c99558
commit
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1 changed files with 16 additions and 10 deletions
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@ -34,33 +34,38 @@ fi
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configfile=`echo $i | sed -e 's/^.*\///'`
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grep -e '-perf:.*writer-duration' $i/console.log | sed -e 's/^\[[^]]*]//' |
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sed -e 's/^\[[^]]*]//' < $i/console.log |
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awk '
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{
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/-perf: .* gps: .* batches:/ {
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ngps = $9;
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nbatches = $11;
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}
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/-perf: .*writer-duration/ {
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gptimes[++n] = $5 / 1000.;
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sum += $5 / 1000.;
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}
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END {
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if (NR <= 0) {
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newNR = asort(gptimes);
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if (newNR <= 0) {
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print "No rcuperf records found???"
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exit;
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}
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asort(gptimes);
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pct50 = int(NR * 50 / 100);
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pct50 = int(newNR * 50 / 100);
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if (pct50 < 1)
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pct50 = 1;
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pct90 = int(NR * 90 / 100);
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pct90 = int(newNR * 90 / 100);
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if (pct90 < 1)
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pct90 = 1;
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pct99 = int(NR * 99 / 100);
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pct99 = int(newNR * 99 / 100);
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if (pct99 < 1)
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pct99 = 1;
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div = 10 ** int(log(gptimes[pct90]) / log(10) + .5) / 100;
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print "Histogram bucket size: " div;
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last = gptimes[1] - 10;
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count = 0;
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for (i = 1; i <= NR; i++) {
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for (i = 1; i <= newNR; i++) {
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current = div * int(gptimes[i] / div);
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if (last == current) {
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count++;
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@ -73,10 +78,11 @@ END {
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}
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if (count > 0)
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print last, count;
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print "Average grace-period duration: " sum / NR " microseconds";
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print "Average grace-period duration: " sum / newNR " microseconds";
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print "Minimum grace-period duration: " gptimes[1];
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print "50th percentile grace-period duration: " gptimes[pct50];
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print "90th percentile grace-period duration: " gptimes[pct90];
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print "99th percentile grace-period duration: " gptimes[pct99];
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print "Maximum grace-period duration: " gptimes[NR];
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print "Maximum grace-period duration: " gptimes[newNR];
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print "Grace periods: " ngps + 0 " Batches: " nbatches + 0 " Ratio: " ngps / nbatches;
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}'
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