Re: [Crash-utility] [PATCH 0/4] speed up handling of dumps with many tasks
----- Original Message -----
This series decreases crash startup and 'ps' processing time
when handling dumps
with many tasks. Prior to the series a 1M task dump took 45m to load and 45m
more to run ps. Once patched, startup+ps time drops below 40 seconds.
Hi Greg,
This sounds really good, although I have to say I've never encountered a dumpfile
that had such a large task count. I will review and test the patch-set next week.
BTW, did you test this on a live system that has such a large task count?
Like for example, as I recall, the task_exists() checks that you removed are
checking for tasks that were found when scanning the lists, but gone by the
time it got around to storing them.
Thanks,
Dave
Greg Thelen (4):
refactor store_context => add_context
refactor task_to_pid
remove unreachable (and slow) code
index task_context by task
defs.h | 2 +
task.c | 191 +++++++++++++++++++++++++++------------------------------
2 files changed, 92 insertions(+), 101 deletions(-)
--
2.17.0.484.g0c8726318c-goog
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