diff options
Diffstat (limited to 'testsuite/systemtap.examples/io')
| -rw-r--r-- | testsuite/systemtap.examples/io/ioblktime.meta | 2 | ||||
| -rw-r--r-- | testsuite/systemtap.examples/io/iotime.meta | 2 | ||||
| -rwxr-xr-x | testsuite/systemtap.examples/io/iotime.stp | 2 | ||||
| -rwxr-xr-x | testsuite/systemtap.examples/io/ttyspy.stp | 4 |
4 files changed, 5 insertions, 5 deletions
diff --git a/testsuite/systemtap.examples/io/ioblktime.meta b/testsuite/systemtap.examples/io/ioblktime.meta index 01f34295..ff895a3f 100644 --- a/testsuite/systemtap.examples/io/ioblktime.meta +++ b/testsuite/systemtap.examples/io/ioblktime.meta @@ -8,6 +8,6 @@ status: production exit: user-controlled output: sorted-list scope: system-wide -description: The ioblktime.stp script tracks the amount of time that each block IO requests spend waiting for completion. The script computes the average time waiting time for block IO per device and prints list every 10 seconds. In some cases there can be too many outstanding block IO operations and the script may exceed the default number of MAXMAPENTRIES allowed. In this case the allowed number can be increased with "-DMAXMAPENTRIES=10000" option on the stap command line. +description: The ioblktime.stp script tracks the amount of time that each block IO requests spend waiting for completion. The script computes the average waiting time for block IO per device and prints list every 10 seconds. In some cases there can be too many outstanding block IO operations and the script may exceed the default number of MAXMAPENTRIES allowed. In this case the allowed number can be increased with "-DMAXMAPENTRIES=10000" option on the stap command line. test_check: stap -p4 ioblktime.stp test_installcheck: stap ioblktime.stp -c "sleep 0.2" diff --git a/testsuite/systemtap.examples/io/iotime.meta b/testsuite/systemtap.examples/io/iotime.meta index cf22eacf..30e0599b 100644 --- a/testsuite/systemtap.examples/io/iotime.meta +++ b/testsuite/systemtap.examples/io/iotime.meta @@ -8,6 +8,6 @@ status: production exit: user-controlled output: trace scope: system-wide -description: The script watches each open, close, read, and write syscalls on the system. For each file the scripts observes opened it accumulates the amount of wall clock time spend in read and write operations and the number of bytes read and written. When a file is closed the script prints out a pair of lines for the file. Both lines begin with a timestamp in microseconds, the PID number, and the executable name in parentheses. The first line with the "access" keyword lists the file name, the attempted number of bytes for the read and write operations. The second line with the "iotime" keyword list the file name and the number of microseconds accumulated in the read and write syscalls. +description: The script watches each open, close, read, and write syscalls on the system. For each file the scripts observes opened it accumulates the amount of wall clock time spent in read and write operations and the number of bytes read and written. When a file is closed the script prints out a pair of lines for the file. Both lines begin with a timestamp in microseconds, the PID number, and the executable name in parentheses. The first line with the "access" keyword lists the file name, the attempted number of bytes for the read and write operations. The second line with the "iotime" keyword list the file name and the number of microseconds accumulated in the read and write syscalls. test_check: stap -p4 iotime.stp test_installcheck: stap iotime.stp -c "sleep 0.2" diff --git a/testsuite/systemtap.examples/io/iotime.stp b/testsuite/systemtap.examples/io/iotime.stp index 60fb09af..288e91d0 100755 --- a/testsuite/systemtap.examples/io/iotime.stp +++ b/testsuite/systemtap.examples/io/iotime.stp @@ -12,7 +12,7 @@ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Print out the amount of time spent in the read and write systemcall - * when a process closes each file is closed. Note that the systemtap + * when each file opened by the process is closed. Note that the systemtap * script needs to be running before the open operations occur for * the script to record data. * diff --git a/testsuite/systemtap.examples/io/ttyspy.stp b/testsuite/systemtap.examples/io/ttyspy.stp index 272d82e9..0c98f391 100755 --- a/testsuite/systemtap.examples/io/ttyspy.stp +++ b/testsuite/systemtap.examples/io/ttyspy.stp @@ -1,11 +1,11 @@ -#! /usr/bin/stap -g +#! /usr/bin/env stap # May also need --skip-badvars global activity_time, activity_log /* Concatenate head and tail, to a max of @num chars, preferring to keep the tail (as if it were a recent history buffer). */ -function strcattail:string(head:string,tail:string,num:long) %{ +function strcattail:string(head:string,tail:string,num:long) %{ /* pure */ unsigned taillen = strlen(THIS->tail); unsigned headlen = strlen(THIS->head); unsigned maxlen = THIS->num < MAXSTRINGLEN ? THIS->num : MAXSTRINGLEN; |