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epriestley 46b50a5995 (stable) Reduce the impact of bin/storage dump
Summary:
Ref T12646.

  - Use "wb1" instead of "wb" to use level 1 gzip compression (faster, less compressy). Locally, this went about 2x faster and the output only grew 4% larger.
  - LinesOfALargeExecFuture does a lot of unnecessary string operations, and can boil down to a busy wait. The process is pretty saturated by I/O so this isn't the end of the world, but just use raw ExecFuture with FutureIterator so that we wait in `select()`.
  - Also, nice the process to +19 so we try to give other things CPU.

Test Plan:
  - Ran `bin/storage dump --compress --output ...`.
  - Saw CPU time for my local database drop from ~240s to ~90s, with a 4% larger output. Most of this was adding the `1`, but the ExecFuture thing helped a little, too.
  - I'm not sure what a great way to test `nice` in a local environment is and it's system dependent anyway, but nothing got worse / blew up.
  - Used `gzcat | head` and `gzcat | tail` on the result to sanity-check that everything was preserved.

Reviewers: chad, amckinley

Reviewed By: chad

Maniphest Tasks: T12646

Differential Revision: https://secure.phabricator.com/D17795
2017-04-26 13:05:47 -07:00
bin Add a profileimage generation workflow for the cli 2017-03-04 15:43:13 -08:00
conf Support "ssl.chain" in Aphlict configuration 2016-04-14 10:41:21 -07:00
externals Apply the wordwrap() hack for "To" to PHPMailerLite 2017-03-16 10:56:25 -07:00
resources (stable) Rebuild Celerity map after merge. 2017-04-21 16:57:55 -07:00
scripts Add a profileimage generation workflow for the cli 2017-03-04 15:43:13 -08:00
src (stable) Reduce the impact of bin/storage dump 2017-04-26 13:05:47 -07:00
support Every so often, ask the Aphict server how things are going 2017-04-17 20:33:43 -07:00
webroot Punch up grey button border grey 10% 2017-04-21 11:43:43 -07:00
.arcconfig Set "history.immutable" to "false" explicitly in .arcconfig 2016-08-03 08:12:49 -07:00
.arclint Begin adding test coverage to GitHub Events API parsers 2016-03-09 09:30:07 -08:00
.arcunit Use the configuration driven unit test engine 2015-08-11 07:57:11 +10:00
.editorconfig Fix text lint issues 2015-02-12 07:00:13 +11:00
.gitignore Make i18n string extraction faster and more flexible 2016-07-04 10:23:30 -07:00
LICENSE Fix text lint issues 2015-02-12 07:00:13 +11:00
NOTICE Update Phabricator NOTICE file to reflect modern legal circumstances 2014-06-25 13:42:13 -07:00
README.md Remove push to IRC from "readme.md" too 2015-10-24 18:39:16 -07:00

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