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Bug 5271

Summary: [PATCH] Respect maximum RLIMIT_RTTIME when setting Linux thread priority
Product: SDL Reporter: Andrew Eikum <aeikum>
Component: threadAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2 CC: sezeroz
Version: HG 2.1   
Hardware: x86_64   
OS: Linux   
Attachments: [PATCH] Respect maximum RLIMIT_RTTIME when setting Linux thread priority

Description Andrew Eikum 2020-08-25 15:55:49 UTC 
Created attachment 4448 [details]
[PATCH] Respect maximum RLIMIT_RTTIME when setting Linux thread priority

Currently the code to set RLIMIT_RTTIME doesn't actually make any changes. The rtkit daemon requires the process's RLIMIT_RTTIME to be below some configurable value. This patch queries that value and then uses it to cap our max RLIMIT_RTTIME setting. This lets the process achieve RT priority via rtkit.
Comment 1 Ozkan Sezer 2020-11-12 04:15:57 UTC 
Patch doesn't apply since https://hg.libsdl.org/SDL/rev/535a3a1a7a7e
Comment 2 Andrew Eikum 2020-11-12 14:24:04 UTC 
Thanks, Ozkan. It looks like the commit you point to has made this patch unnecessary. I'm unsure about the rlim_cur setting in the current code, but presumably it was tested and working.
Comment 3 Andrew Eikum 2020-11-12 14:24:33 UTC 
Resolving.