diff options
Diffstat (limited to 'testsuite/systemtap.examples/small_demos/rwtiming.stp')
-rwxr-xr-x | testsuite/systemtap.examples/small_demos/rwtiming.stp | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/testsuite/systemtap.examples/small_demos/rwtiming.stp b/testsuite/systemtap.examples/small_demos/rwtiming.stp deleted file mode 100755 index d570c581..00000000 --- a/testsuite/systemtap.examples/small_demos/rwtiming.stp +++ /dev/null @@ -1,74 +0,0 @@ -#! /usr/bin/env stap -# rwtiming.stp -# -# This is a simple example to track the amount of time -# spent doing reads and writes for the various programs running on the -# system. - -probe begin { log("starting probe") } - -global names, opens, reads, writes -global entry_opens, entry_reads, entry_writes -global time_opens, time_reads, time_writes - -probe kernel.function("sys_open") { - t=gettimeofday_us(); p=pid(); e=execname(); - names[e]=1 - opens[e] ++ # plain integer - entry_opens[p] = t; -} - -probe kernel.function("sys_open").return { - t=gettimeofday_us(); p=pid(); e=execname(); - time_opens[e] <<< t - entry_opens[p]; -} - -probe kernel.function("sys_read") { - t= gettimeofday_us(); p =pid(); e=execname(); - names[e]=1 - reads[e] <<< $count # statistics - entry_reads[p] = t; -} - -probe kernel.function("sys_read").return { - t=gettimeofday_us(); p=pid(); e=execname(); - time_reads[e] <<< t - entry_reads[p]; -} - -probe kernel.function("sys_write") { - t=gettimeofday_us(); p=pid(); e=execname(); - names[e]=1 - writes[e] <<< $count # statistics - entry_writes[p] = t; -} - -probe kernel.function("sys_write").return { - t = gettimeofday_us(); p = pid(); e=execname(); - time_writes[e] <<< t - entry_writes[p]; -} - -probe end { - foreach(name+ in names) { # sort by names - printf ("process: %s\n", name) - if (opens[name]) { - printf ("opens n=%d\n", opens[name]) - print (@hist_log(time_opens[name])) - } - if (@count(reads[name])) { - printf ("reads n=%d, sum=%d, avg=%d\n", - @count(reads[name]), # extracting stat results - @sum(reads[name]), - @avg(reads[name])) - print ("read timing distribution\n") - print (@hist_log(time_reads[name])) - } - if (@count(writes[name])) { - printf ("writes n=%d, sum=%d, avg=%d\n", - @count(writes[name]), # extracting stat results - @sum(writes[name]), - @avg(writes[name])) - print ("write timing distribution\n") - print (@hist_log(time_writes[name])) - } - } -} |