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phorge-phorge/src/infrastructure/ssh
epriestley f7464400a5 Limit memory usage of ssh-exec during large pull operations
Summary: Fixes T4241. Ref T4206. See T4241 for a description here. Generally, when we connect a fat pipe (`git-upload-pack`) to a narrow one (`git` over SSH) we currently read limitless data into memory. Instead, throttle reads until writes catch up. This is now possible because of the previous changes in this sequence.

Test Plan:
  - Ran `git clone` and `git push` on the entire Wine repository.
  - Observed CPU and memory usage.
  - Memory usage was constant and low, CPU usage was high only during I/O (which is expected, since we have to actually do work, although thre might be room to further reduce this).

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T4241, T4206

Differential Revision: https://secure.phabricator.com/D7776
2013-12-16 12:37:32 -08:00
..
PhabricatorSSHPassthruCommand.php Limit memory usage of ssh-exec during large pull operations 2013-12-16 12:37:32 -08:00
PhabricatorSSHWorkflow.php Generalize SSH passthru for repository hosting 2013-11-11 12:12:21 -08:00