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Changed cThread::SetIOPriority() from "best effort class" to "idle class" in order to improve overall performance when an editing process is running

This commit is contained in:
Klaus Schmidinger 2013-04-11 08:59:26 +02:00
parent 1b1dc6d775
commit 06f7c2d414
3 changed files with 9 additions and 2 deletions
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4
CONTRIBUTORS
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@ -3141,3 +3141,7 @@ Zoran Turalija <zoran.turalija@gmail.com>
Stefan Braun <louis.braun@gmx.de>
for reporting an endless loop in cTextWrapper::Set() in case the given Width is smaller
than one character
Jochen Dolze <vdr@dolze.de>
for changing cThread::SetIOPriority() from "best effort class" to "idle class" in order
to improve overall performance when an editing process is running

3
HISTORY
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@ -7791,3 +7791,6 @@ Video Disk Recorder Revision History
Udo Richter).
- Fixed handling '/' and '~' in recording file names in case DirectoryEncoding is
used (thanks to Lars Hanisch).
- Changed cThread::SetIOPriority() from "best effort class" to "idle class" in order to
improve overall performance when an editing process is running (thanks to Jochen
Dolze).

4
thread.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: thread.c 2.7 2013/02/22 14:52:49 kls Exp $
* $Id: thread.c 2.7.1.1 2013/04/11 08:59:26 kls Exp $
*/
#include "thread.h"
@ -229,7 +229,7 @@ void cThread::SetPriority(int Priority)
void cThread::SetIOPriority(int Priority)
{
if (syscall(SYS_ioprio_set, 1, 0, (Priority & 0xff) | (2 << 13)) < 0) // best effort class
if (syscall(SYS_ioprio_set, 1, 0, (Priority & 0xff) | (3 << 13)) < 0) // idle class
LOG_ERROR;
}