diff options
Diffstat (limited to 'testsuite/systemtap.examples')
| -rw-r--r-- | testsuite/systemtap.examples/general/para-callgraph.meta | 4 | ||||
| -rwxr-xr-x | testsuite/systemtap.examples/io/traceio.stp | 33 |
2 files changed, 25 insertions, 12 deletions
diff --git a/testsuite/systemtap.examples/general/para-callgraph.meta b/testsuite/systemtap.examples/general/para-callgraph.meta index 87af07cf..84d1c93f 100644 --- a/testsuite/systemtap.examples/general/para-callgraph.meta +++ b/testsuite/systemtap.examples/general/para-callgraph.meta @@ -3,5 +3,5 @@ name: para-callgraph.stp keywords: trace callgraph subsystem: general description: Print a timed per-thread callgraph, complete with function parameters and return values. The first parameter names the function probe points to trace. The optional second parameter names the probe points for trigger functions, which acts to enable tracing for only those functions that occur while the current thread is nested within the trigger. -test_check: stap -p4 para-callgraph.stp kernel.function("*@fs/proc*.c") kernel.function("sys_read") -test_installcheck: stap para-callgraph.stp kernel.function("*@fs/proc*.c") kernel.function("sys_read") -c "cat /proc/sys/vm/*" +test_check: stap -p4 para-callgraph.stp kernel.function("*@fs/proc*.c") kernel.function("vfs_read") +test_installcheck: stap para-callgraph.stp kernel.function("*@fs/proc*.c") kernel.function("vfs_read") -c "cat /proc/sys/vm/*" diff --git a/testsuite/systemtap.examples/io/traceio.stp b/testsuite/systemtap.examples/io/traceio.stp index 9e2deec6..875000cb 100755 --- a/testsuite/systemtap.examples/io/traceio.stp +++ b/testsuite/systemtap.examples/io/traceio.stp @@ -1,6 +1,9 @@ #! /usr/bin/env stap # traceio.stp # Copyright (C) 2007 Red Hat, Inc., Eugene Teo <eteo@redhat.com> +# Copyright (C) 2009 Kai Meyer <kai@unixlords.com> +# Fixed a bug that allows this to run longer +# And added the humanreadable function # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 as @@ -10,22 +13,32 @@ global reads, writes, total_io probe vfs.read.return { - reads[execname()] += $return + reads[pid(),execname()] += $return + total_io[pid(),execname()] += $return } probe vfs.write.return { - writes[execname()] += $return + writes[pid(),execname()] += $return + total_io[pid(),execname()] += $return +} + +function humanreadable(bytes) { + if (bytes > 1024*1024*1024) { + return sprintf("%d GiB", bytes/1024/1024/1024) + } else if (bytes > 1024*1024) { + return sprintf("%d MiB", bytes/1024/1024) + } else if (bytes > 1024) { + return sprintf("%d KiB", bytes/1024) + } else { + return sprintf("%d B", bytes) + } } probe timer.s(1) { - foreach (p in reads) - total_io[p] += reads[p] - foreach (p in writes) - total_io[p] += writes[p] - foreach(p in total_io- limit 10) - printf("%15s r: %8d KiB w: %8d KiB\n", - p, reads[p]/1024, - writes[p]/1024) + foreach([p,e] in total_io- limit 10) + printf("%8d %15s r: %12s w: %12s\n", + p, e, humanreadable(reads[p,e]), + humanreadable(writes[p,e])) printf("\n") # Note we don't zero out reads, writes and total_io, # so the values are cumulative since the script started. |