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bitbake: bitbake-worker: Drop BBHASH variables 

Iterating through and calling setVar on this number of variables has significant
overhead in the profiling data. By not setting this, we save 3,000 calls
to setVar which gives a noticeable improvement to the speed of task execution.

The BBHASH variables have since been replaced by accessing that data through
the siggen code and going forward, that is the preferred way work with it.

(Bitbake rev: 92526eadd09d19938762290e0492076174367583)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie 2014-04-13 11:49:45 +01:00
parent 249a24eee0
commit 81a1b83954
1 changed files with 0 additions and 4 deletions
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4
bitbake/bin/bitbake-worker
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@ -159,10 +159,6 @@ def fork_off_task(cfg, data, workerdata, fn, task, taskname, appends, taskdepdat
try:
the_data = bb.cache.Cache.loadDataFull(fn, appends, data)
the_data.setVar('BB_TASKHASH', workerdata["runq_hash"][task])
for h in workerdata["hashes"]:
the_data.setVar("BBHASH_%s" % h, workerdata["hashes"][h])
for h in workerdata["hash_deps"]:
the_data.setVar("BBHASHDEPS_%s" % h, workerdata["hash_deps"][h])
# exported_vars() returns a generator which *cannot* be passed to os.environ.update()
# successfully. We also need to unset anything from the environment which shouldn't be there