diff options
Diffstat (limited to 'testsuite/systemtap.examples/locks/bkl.meta')
| -rw-r--r-- | testsuite/systemtap.examples/locks/bkl.meta | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/testsuite/systemtap.examples/locks/bkl.meta b/testsuite/systemtap.examples/locks/bkl.meta new file mode 100644 index 00000000..ff232ec7 --- /dev/null +++ b/testsuite/systemtap.examples/locks/bkl.meta @@ -0,0 +1,10 @@ +title: Tracing Contention on Big Kernel Lock (BKL) +name: bkl.stp +keywords: locking +subsystem: kernel +author: Flavio Leitner +status: production +exit: user-controlled +description: The bkl.stp script can help determine whether the Big Kernel Lock (BKL) is causing serialization on a multiprocessor system due to excessive contention of the BKL. The bkl.stp script takes one argument which is the number of processes waiting for the Big Kernel Lock (BKL). When the number of processes waiting for the BKL is reached or exceeded, the script will print a time stamp, the number of processes waiting for the BKL, the holder of the BKL, and the amount of time the BKL was held. +test_check: stap -p4 bkl.stp +test_installcheck: stap bkl.stp -c "sleep 1" |