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Diffstat (limited to 'cddl/contrib/dtracetoolkit/Examples/readdist_example.txt')
| -rw-r--r-- | cddl/contrib/dtracetoolkit/Examples/readdist_example.txt | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/Examples/readdist_example.txt b/cddl/contrib/dtracetoolkit/Examples/readdist_example.txt new file mode 100644 index 000000000000..42811d8d36ae --- /dev/null +++ b/cddl/contrib/dtracetoolkit/Examples/readdist_example.txt @@ -0,0 +1,35 @@ +The following is an example of the readdist.d script, + + +Here the readdist.d script is run for a few seconds, then Ctrl-C is hit, + + # readdist.d + dtrace: description 'sysinfo:::readch ' matched 4 probes + ^C + [...] + gnome-terminal + value ------------- Distribution ------------- count + 16 | 0 + 32 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 15 + 64 |@@@ 1 + 128 | 0 + + Xorg + value ------------- Distribution ------------- count + -1 | 0 + 0 |@@@@@@@@@@@@@@@@@@@ 26 + 1 | 0 + 2 | 0 + 4 | 0 + 8 |@@@@ 6 + 16 |@ 2 + 32 |@ 2 + 64 | 0 + 128 |@@@@@@@@ 11 + 256 |@@@ 4 + 512 | 0 + +This allows us to understand the read behaviour of each process. The +Xorg command has executed 26 reads that returned 0 bytes, through +to 4 reads that were at least 256 bytes (up to 511). + |