diff options
Diffstat (limited to 'system/fatrace/README')
| -rw-r--r-- | system/fatrace/README | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/system/fatrace/README b/system/fatrace/README index e986031f20..edd2a3600c 100644 --- a/system/fatrace/README +++ b/system/fatrace/README @@ -1,10 +1,17 @@ +fatrace (file access trace) + fatrace reports file access events from all running processes. Its main purpose is to find processes which keep waking up the disk unnecessarily and thus prevent some power saving. -Included is a python3 script called "power-usage-report", which uses -fatrace and powertop to build a textual report from one minute of -measuring power usage and file accesses. This does not take any -arguments or requires any interactivity, so is very simple to use and +Included is a python3 script called "power-usage-report", which +uses fatrace and powertop to build a textual report from one minute +of measuring power usage and file accesses. This does not take any +arguments or require any interactivity, so it's very simple to use and serves as a starting point for bug reports or optimizing a particular installation. + +fatrace has self-test scripts that can be run during the build. These +are disabled by default, because they create a file outside of the +temp directory (/etc/test.txt). If you want to run the tests, export +RUNTESTS=yes in the environment. |