[oe-commits] [bitbake] 02/08: runqueue.py: monitor disk space at regular time intervals
git at git.openembedded.org
git at git.openembedded.org
Wed Dec 7 10:44:20 UTC 2016
rpurdie pushed a commit to branch master
in repository bitbake.
commit 4547eea26803a9cd355d8b045197bcbdbb36a9ad
Author: Patrick Ohly <patrick.ohly at intel.com>
AuthorDate: Tue Nov 29 17:47:43 2016 +0100
runqueue.py: monitor disk space at regular time intervals
Hooking the disk monitor into the regular heatbeat event instead
of the runqueue solves two problems:
- When there is just one long running task which fills up the disk,
the previous approach did not notice that until after the completion
of the task because _execute_runqueue() only gets called on task
state changes. As a result, aborting a build did not work in this
case.
- When there are many short-lived tasks, disk space was getting
checked very frequently. When the storage that is getting checked
is on an NFS server, that can lead to noticable traffic to the
server.
Signed-off-by: Patrick Ohly <patrick.ohly at intel.com>
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
lib/bb/runqueue.py | 24 +++++++++++++++++++-----
1 file changed, 19 insertions(+), 5 deletions(-)
diff --git a/lib/bb/runqueue.py b/lib/bb/runqueue.py
index 51d68a5..3d8ae1f 100644
--- a/lib/bb/runqueue.py
+++ b/lib/bb/runqueue.py
@@ -984,8 +984,14 @@ class RunQueue:
self.state = runQueuePrepare
# For disk space monitor
+ # Invoked at regular time intervals via the bitbake heartbeat event
+ # while the build is running. We generate a unique name for the handler
+ # here, just in case that there ever is more than one RunQueue instance,
+ # start the handler when reaching runQueueSceneRun, and stop it when
+ # done with the build.
self.dm = monitordisk.diskMonitor(cfgData)
-
+ self.dm_event_handler_name = '_bb_diskmonitor_' + str(id(self))
+ self.dm_event_handler_registered = False
self.rqexe = None
self.worker = {}
self.fakeworker = {}
@@ -1208,10 +1214,12 @@ class RunQueue:
self.rqdata.init_progress_reporter.next_stage()
self.rqexe = RunQueueExecuteScenequeue(self)
- if self.state in [runQueueSceneRun, runQueueRunning, runQueueCleanUp]:
- self.dm.check(self)
-
if self.state is runQueueSceneRun:
+ if not self.dm_event_handler_registered:
+ res = bb.event.register(self.dm_event_handler_name,
+ lambda x: self.dm.check(self) if self.state in [runQueueSceneRun, runQueueRunning, runQueueCleanUp] else False,
+ ('bb.event.HeartbeatEvent',))
+ self.dm_event_handler_registered = True
retval = self.rqexe.execute()
if self.state is runQueueRunInit:
@@ -1230,7 +1238,13 @@ class RunQueue:
if self.state is runQueueCleanUp:
retval = self.rqexe.finish()
- if (self.state is runQueueComplete or self.state is runQueueFailed) and self.rqexe:
+ build_done = self.state is runQueueComplete or self.state is runQueueFailed
+
+ if build_done and self.dm_event_handler_registered:
+ bb.event.remove(self.dm_event_handler_name, None)
+ self.dm_event_handler_registered = False
+
+ if build_done and self.rqexe:
self.teardown_workers()
if self.rqexe.stats.failed:
logger.info("Tasks Summary: Attempted %d tasks of which %d didn't need to be rerun and %d failed.", self.rqexe.stats.completed + self.rqexe.stats.failed, self.rqexe.stats.skipped, self.rqexe.stats.failed)
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