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From: <sv...@va...> - 2008-06-18 14:14:00
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Author: bart
Date: 2008-06-18 15:14:03 +0100 (Wed, 18 Jun 2008)
New Revision: 8253
Log:
Average and standard deviation are now rounded at two digits past the decimal point.
Modified:
trunk/exp-drd/scripts/measurement-functions
Modified: trunk/exp-drd/scripts/measurement-functions
===================================================================
--- trunk/exp-drd/scripts/measurement-functions 2008-06-18 13:31:05 UTC (rev 8252)
+++ trunk/exp-drd/scripts/measurement-functions 2008-06-18 14:14:03 UTC (rev 8253)
@@ -35,7 +35,7 @@
## Read a stream of numbers from stdin (one per line), and print the average
# and standard deviation.
function avgstddev {
- awk '{n++;m=NF;for(i=1;i<=NF;i++){sum[i]+=$i;sumsq[i]+=$i*$i}}END{for(i=1;i<=m;i++){d=sumsq[i]/n-sum[i]*sum[i]/n/n;printf "%g %g ",sum[i]/n,(d>0?sqrt(d):0)}}'
+ awk '{n++;m=NF;for(i=1;i<=NF;i++){sum[i]+=$i;sumsq[i]+=$i*$i}}END{for(i=1;i<=m;i++){d=sumsq[i]/n-sum[i]*sum[i]/n/n;printf "%.2f %.2f ",sum[i]/n,(d>0?sqrt(d):0)}}'
}
## Query the virtual memory size for the last invocation of command $1 from
@@ -116,6 +116,6 @@
measure_runtime "$@" | avgstddev > "$tmp"
read avg2 stddev2 vsz2 vszdev2 < "$tmp"
echo "Average time: ${avg2} +/- ${stddev2} seconds / VSZ ${vsz2} +/- ${vszdev2} KB"
- awk "END{print "'"'"Ratio ="'"'", ${avg2}/${avg1}, "'"'"+/-"'"'", ${avg2}/${avg1}*(${stddev1}/${avg1}+${stddev2}/${avg2}), "'"; VSZ ratio: "'", ${vsz2:-0}/${vsz1}, "'"'"+/-"'"'", ${vsz2:-0}/${vsz1}*(${vszdev1}/${vsz1}+${vszdev2:-0}/${vsz2:-1})}" </dev/null
+ awk "END{printf "'"'"Ratio = %.2f +/- %.2f; VSZ ratio: %.2f +/- %.2f\n"'"'", ${avg2}/${avg1}, ${avg2}/${avg1}*(${stddev1}/${avg1}+${stddev2}/${avg2}), ${vsz2}/${vsz1}, ${vsz2}/${vsz1}*(${vszdev1}/${vsz1}+${vszdev2}/${vsz2})}" </dev/null
}
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