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sstate/staging: Batch log messages for performance

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According to profile data, repeated calls to bb.debug and bb.note in
the extend_recipe_sysroot() codepath were accounting for 75% of the time
(1.5s) in calls from tasks like do_image_complete.

This batches up the log messages into one call into the logging system
which gives similar behaviour to disabling the logging but retains the
debug information.

Since setscene_depvalid is also called from bitbake's setscene code,
we have to be a little creative with the function parameters and leave
the other debug output mechanism in place. This should hopefully
speed up recipe specific sysroots.

(From OE-Core rev: 3b0af8dc0f796345d1f1ba77ea35bbd090a5feb3)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
2017-02-01 11:25:32 +00:00
parent ec3d83f9a9
commit 758f18167f
2 changed files with 17 additions and 8 deletions
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14
meta/classes/sstate.bbclass
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@@ -909,13 +909,19 @@ def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d, siginfo=False):
BB_SETSCENE_DEPVALID = "setscene_depvalid"
def setscene_depvalid(task, taskdependees, notneeded, d):
def setscene_depvalid(task, taskdependees, notneeded, d, log=None):
# taskdependees is a dict of tasks which depend on task, each being a 3 item list of [PN, TASKNAME, FILENAME]
# task is included in taskdependees too
# Return - False - We need this dependency
# - True - We can skip this dependency
bb.debug(2, "Considering setscene task: %s" % (str(taskdependees[task])))
def logit(msg, log):
if log is not None:
log.append(msg)
else:
bb.debug(2, msg)
logit("Considering setscene task: %s" % (str(taskdependees[task])), log)
def isNativeCross(x):
return x.endswith("-native") or "-cross-" in x or "-crosssdk" in x or x.endswith("-cross")
@@ -933,7 +939,7 @@ def setscene_depvalid(task, taskdependees, notneeded, d):
return True
for dep in taskdependees:
bb.debug(2, " considering dependency: %s" % (str(taskdependees[dep])))
logit(" considering dependency: %s" % (str(taskdependees[dep])), log)
if task == dep:
continue
if dep in notneeded:
@@ -987,7 +993,7 @@ def setscene_depvalid(task, taskdependees, notneeded, d):
# Safe fallthrough default
bb.debug(2, " Default setscene dependency fall through due to dependency: %s" % (str(taskdependees[dep])))
logit(" Default setscene dependency fall through due to dependency: %s" % (str(taskdependees[dep])), log)
return False
return True