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| author | Ryan Harper <ryan.harper@canonical.com> | 2016-11-22 13:03:55 -0500 |
|---|---|---|
| committer | Scott Moser <smoser@brickies.net> | 2016-11-22 13:03:55 -0500 |
| commit | 4f0a2774b5e71fdc83553de7d563f7bc3db74866 (patch) | |
| tree | f3bf580c70d39a1253c4aef49287d81628ed3e09 /cloudinit/cmd | |
| parent | 677b85abfb2558207956a199eaaceb91af07c076 (diff) | |
| download | vyos-cloud-init-4f0a2774b5e71fdc83553de7d563f7bc3db74866.tar.gz vyos-cloud-init-4f0a2774b5e71fdc83553de7d563f7bc3db74866.zip | |
main: set TZ in environment if not already set.
If TZ is not set in environment, then datetime.datetime() will
stat /etc/localtime on every usage. datetime is used in the logging
path of cloud-init, and as such this is very busy.
During a normal cloud-init boot, it results in we roughly
400+ stat calls to /etc/localtime.
The value we set is :/etc/localtime, which is described at
https://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html
See also merge proposal at 307722 for more background.
https://code.launchpad.net/~raharper/cloud-init/+git/cloud-init/+merge/307722
Diffstat (limited to 'cloudinit/cmd')
| -rw-r--r-- | cloudinit/cmd/main.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/cloudinit/cmd/main.py b/cloudinit/cmd/main.py index fe37075e..26c02401 100644 --- a/cloudinit/cmd/main.py +++ b/cloudinit/cmd/main.py @@ -694,4 +694,6 @@ def main(sysv_args=None): if __name__ == '__main__': + if 'TZ' not in os.environ: + os.environ['TZ'] = ":/etc/localtime" main(sys.argv) |