Pike-devel September 2020

pike-devel@lists.lysator.liu.se

2 participants
3 discussions

Pike Meet-up 2018-Q1
by Henrik Grubbstr�m (Lysator) ＠ Pike (-) developers forum 20 Oct '21

20 Oct '21

Hi. At Pike Conference 2017 it was decided that we ought to hold a more informal meeting in Linköping ~ once every quarter. As the three month mark from the conference is coming up soon, it seems time to announce the first such meeting for 2018: Pike Meet-up 2018-Q1 Date: 2018-02-03 (Sat) Time: 10:00 - afternoon/evening Place: Roxen IS AB S:t Larsgatan 22A Linköping Welcome! /grubba

2 13

Removing AggregateState increases the memory footprint of a Promise substantially
by Stephen R. van den Berg 07 Sep '20

07 Sep '20

Looking at: commit 36a7c5f2c3b44f5556fc2a8e05051211b0e3d834 Author: Henrik Grubbstr<C3><B6>m (Grubba) <grubba(a)grubba.org> Date: Wed Aug 26 17:44:39 2020 +0200 Concurrent.Promise: Refactored the dependency handling. I find: - final int _materialised; - final AggregateState _astate; + protected array(mapping(int:mixed)) dependency_results = ({ ([]), ([]) }); + protected int(0..) num_dependencies; + protected int(1bit) started; + protected int(0..) min_failure_threshold; + protected int(-1..) max_failure_threshold; + protected function(mixed, mixed, mixed ... : mixed) fold_fun; + protected array(mixed) extra_fold_args; If you are running a system with a huge number of promises, it thus causes a substantially increased memory footprint. The reason I used the _astate and _materialised variables was because it allows the memory footprint to be substantially lower after the promise has been setup. In systems with lots of long-lived promises running around, the memory footprint of a single promise seems quite relevant. -- Stephen.

1 1

Pikefarm hang
by Henrik Grubbstr�m (Lysator) ＠ Pike (-) developers forum 01 Sep '20

01 Sep '20

Hi. For Pikefarm participants information: Pikefarm build 5559 of Pike master seems to hang spending 100% CPU during the testsuite, and may need to be killed by hand. Sorry for the inconvenience. /grubba

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Pike-devel September 2020