Opened at 2010-03-09T06:11:31Z
Last modified at 2010-09-03T18:05:05Z
#983 closed defect
high CPU load on storage servers when uploading large mutable file — at Initial Version
| Reported by: | zooko | Owned by: | |
|---|---|---|---|
| Priority: | major | Milestone: | 1.8β |
| Component: | code-storage | Version: | 1.6.1 |
| Keywords: | performance mutable upload memory reviewed | Cc: | |
| Launchpad Bug: |
Description
Jody Harris and Justin Stottlemyer both reported that uploading a large mutable file causes high CPU load on storage servers. Brian then found this bug: http://foolscap.lothar.com/trac/ticket/149 (O(n2) CPU/malloc during receive of large strings) which could explain their problems. Jody's report was on the mailing list and Justin's was #962.
The next step is for Brian to fix this issue in foolscap and then for Jody and Justin to test out the new version of foolscap with Tahoe-LAFS and see if that fixes that problem.
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