diff options
Diffstat (limited to 'testsuite/systemtap.examples/subsystem-index.txt')
| -rw-r--r-- | testsuite/systemtap.examples/subsystem-index.txt | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/testsuite/systemtap.examples/subsystem-index.txt b/testsuite/systemtap.examples/subsystem-index.txt index d34ac64c..0e116a60 100644 --- a/testsuite/systemtap.examples/subsystem-index.txt +++ b/testsuite/systemtap.examples/subsystem-index.txt @@ -146,14 +146,12 @@ subsystems: none, keywords: simple = SCHEDULER = process/sleepingBeauties.stp - Generating Backtraces of Threads Waiting for IO Operations -subsystems: scheduler, keywords: io scheduler - - The script monitor time threads spend waiting for IO operations (in - "D" state) in the wait_for_completion function. If a thread spends - over 10ms wall-clock time waiting, information is printed out - describing the thread number and executable name. When slow the - wait_for_completion function complete, backtraces for the long - duration calls are printed out. +subsystems: scheduler, keywords: io scheduler backtrace + + The script monitors the time that threads spend waiting for IO + operations (in "D" state) in the wait_for_completion function. If a + thread spends over 10ms, its name and backtrace is printed, and later + so is the total delay. = SIGNALS = |