Performance regression on curl-4.47 (16.04 LTS)

Bug #1638952 reported by Martin
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
curl (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

The frozen version of curl-4.47 on 16.04 LTS has serious performance regression caused by bug in state machine which is causing a a poll() loop. The symptom of this is high percentage of sys time of a multi threaded process. In my case, as much as half of process time was sys (aka time spent waiting for network IO). curl-4.50 as it is stable in 16.10 does not show this behavior therefore I'd like to request version bump to be able to use LTS with fixed curl.

More info about the regression:
http://curl.haxx.se/bug/view.cgi?id=1397
https://github.com/curl/curl/commit/a4cece3d47cf092da00cf9910e87bb60b9eff533
https://github.com/curl/curl/commit/d7e3942814e0c3a24069a0888da4b2431bafe44a

Martin (beavel)
description: updated
tags: removed: upgrade-software-version
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in curl (Ubuntu):
status: New → Confirmed
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