* [PATCH 0/1] Clarify the meaning of setting /dev/cpu_dma_latency to 0
@ 2012-12-19 15:35 Carsten Emde
2012-12-19 15:35 ` [PATCH 1/1] Improve message when disabling sleep states Carsten Emde
0 siblings, 1 reply; 2+ messages in thread
From: Carsten Emde @ 2012-12-19 15:35 UTC (permalink / raw)
To: RT-users; +Cc: John Kacur, Clark Williams, Carsten Emde
Hi John,
hi Clark,
this patch relates to the rt-users thread
http://permalink.gmane.org/gmane.linux.rt.user/9293.
Thanks,
-Carsten.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH 1/1] Improve message when disabling sleep states
2012-12-19 15:35 [PATCH 0/1] Clarify the meaning of setting /dev/cpu_dma_latency to 0 Carsten Emde
@ 2012-12-19 15:35 ` Carsten Emde
0 siblings, 0 replies; 2+ messages in thread
From: Carsten Emde @ 2012-12-19 15:35 UTC (permalink / raw)
To: RT-users; +Cc: John Kacur, Clark Williams, Carsten Emde
[-- Attachment #1: improve-message-when-disabling-sleep-states.patch --]
[-- Type: text/plain, Size: 722 bytes --]
The message "/dev/cpu_dma_latency set to 0us" may not always correctly
transmit the message that the purpose of doing so is to disable sleep
states. Added this detail to the message.
Signed-off-by: Carsten Emde <C.Emde@osadl.org>
Index: rt-tests/src/cyclictest/cyclictest.c
===================================================================
--- rt-tests.orig/src/cyclictest/cyclictest.c
+++ rt-tests/src/cyclictest/cyclictest.c
@@ -227,7 +227,8 @@ static void set_latency_target(void)
close(latency_target_fd);
return;
}
- printf("# /dev/cpu_dma_latency set to %dus\n", latency_target_value);
+ printf("# /dev/cpu_dma_latency set to %dus (disabling sleep states)\n",
+ latency_target_value);
}
}
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-12-19 15:35 [PATCH 0/1] Clarify the meaning of setting /dev/cpu_dma_latency to 0 Carsten Emde
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