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authorKeith Packard <keithp@keithp.com>2017-02-16 15:04:43 +0000
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2017-03-21 10:33:30 +0100
commitf14f738a627b5a6f6c1242f4fe123e4cc9e9c811 (patch)
treef5e76985e4a9701124e021dc4168c0777b6ed11d /nx-X11/programs/Xserver/dix/dispatch.c
parent6c076cfe5a656b03d4bd0dd9742e7a02dce2b957 (diff)
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dix/os: Merge priority computation into SmartScheduleClient
Backported from X.org: commit 7762a602c1dfdd8cfcf2b8c2281cf4d683d05216 Author: Keith Packard <keithp@keithp.com> Date: Thu May 19 15:05:55 2016 -0700 dix/os: Merge priority computation into SmartScheduleClient Instead of having scheduling done in two places (one in WaitForSomething, and the other in SmartScheduleClient), just stick all of the scheduling in SmartScheduleClient. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Adam Jackson <ajax@redhat.com> Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Diffstat (limited to 'nx-X11/programs/Xserver/dix/dispatch.c')
-rw-r--r--nx-X11/programs/Xserver/dix/dispatch.c25
1 files changed, 14 insertions, 11 deletions
diff --git a/nx-X11/programs/Xserver/dix/dispatch.c b/nx-X11/programs/Xserver/dix/dispatch.c
index 7b2aa7b3d..68c207e33 100644
--- a/nx-X11/programs/Xserver/dix/dispatch.c
+++ b/nx-X11/programs/Xserver/dix/dispatch.c
@@ -240,15 +240,13 @@ void InitProcVectors(void);
int
SmartScheduleClient (int *clientReady, int nready)
{
- ClientPtr pClient;
int i;
int client;
- int bestPrio, best = 0;
+ ClientPtr pClient, best = NULL;
int bestRobin, robin;
long now = SmartScheduleTime;
long idle;
- bestPrio = -0x7fffffff;
bestRobin = 0;
idle = 2 * SmartScheduleSlice;
for (i = 0; i < nready; i++)
@@ -264,13 +262,19 @@ SmartScheduleClient (int *clientReady, int nready)
pClient->smart_check_tick = now;
/* check priority to select best client */
- robin = (pClient->index - SmartLastIndex[pClient->smart_priority-SMART_MIN_PRIORITY]) & 0xff;
- if (pClient->smart_priority > bestPrio ||
- (pClient->smart_priority == bestPrio && robin > bestRobin))
+ robin = (pClient->index -
+ SmartLastIndex[pClient->smart_priority -
+ SMART_MIN_PRIORITY]) & 0xff;
+
+ /* pick the best client */
+ if (!best ||
+ pClient->priority > best->priority ||
+ (pClient->priority == best->priority &&
+ (pClient->smart_priority > best->smart_priority ||
+ (pClient->smart_priority == best->smart_priority && robin > bestRobin))))
{
- bestPrio = pClient->smart_priority;
+ best = pClient;
bestRobin = robin;
- best = client;
}
#ifdef SMART_DEBUG
if ((now - SmartLastPrint) >= 5000)
@@ -284,8 +288,7 @@ SmartScheduleClient (int *clientReady, int nready)
SmartLastPrint = now;
}
#endif
- pClient = clients[best];
- SmartLastIndex[bestPrio-SMART_MIN_PRIORITY] = pClient->index;
+ SmartLastIndex[best->smart_priority - SMART_MIN_PRIORITY] = best->index;
/*
* Set current client pointer
*/
@@ -314,7 +317,7 @@ SmartScheduleClient (int *clientReady, int nready)
{
SmartScheduleSlice = SmartScheduleInterval;
}
- return best;
+ return best->index;
}
#ifndef NXAGENT_SERVER