tests/tracepoint/benchmark/runtest.sh

   1 #!/bin/sh
   2
   3 #UST scalability test
   4
   5 REPORT=/tmp/testreport
   6
   7 rm $REPORT
   8
   9 echo "Userspace tracing scalability test report" |tee >> $REPORT
  10
  11 for nr_threads in 1 2 4 8; do
  12         echo "" | tee >> $REPORT
  13         echo Number of threads: $nr_threads | tee >> $REPORT
  14         echo "* Baseline" | tee >> $REPORT
  15
  16         sync
  17         /usr/bin/time -o /tmp/testlog ./.libs/tracepoint_benchmark ${nr_threads}
  18         cat /tmp/testlog >> $REPORT
  19
  20         #flight recorder, don't record trace to disk.
  21         export UST_AUTOCOLLECT=0
  22         export UST_OVERWRITE=1
  23         export UST_SUBBUF_NUM=16
  24         #default buffer size is 4k
  25
  26         #Collect traces to disk
  27         #export UST_AUTOCOLLECT=1
  28         #export UST_OVERWRITE=0
  29         #export UST_SUBBUF_NUM=16
  30         #default buffer size is 4k
  31
  32         echo "* Flight recorder" | tee >> $REPORT
  33         sync
  34         /usr/bin/time -o /tmp/testlog usttrace ./.libs/tracepoint_benchmark ${nr_threads}
  35         cat /tmp/testlog >> $REPORT
  36 done
  37
  38 cat /tmp/testreport