Am Samstag, 17. März 2012 schrieb Martin Steigerwald:
> Thus is you have plasma-desktop in the first place, I think this is
> not normal. Unless you do not run anything else at all in the moment.
> I think I will try with all user applications closed and look again.
So there we go - just two samples with all applications closed, all
preloaded konquerors stopped, Akonadi stopped, Nepomuk told
to stop indexing (whether it did, is another question):
Summary: 355,2 wakeups/second, 0,0 GPU ops/second and 0,0 VFS ops/sec
Usage Events/s Category Description
100,0% Device Audio codec hwC0D0:
Conexant
100,0% Device Audio codec hwC0D3: Intel
9,2 ms/s 89,2 Process kwin -session
10cec7d36b000131558400500000159990000_1331979787_317189
12,3 ms/s 67,5 Process /usr/bin/X :0 vt7 -br
-nolisten tcp -auth
/var/run/xauth/A:0-5Zjkna
2,0 ms/s 60,1 Process [irq/44-i915]
1,0 ms/s 40,0 Timer hrtimer_wakeup
257,1 µs/s 23,5 Interrupt [44] i915
2,7 ms/s 14,2 Process /usr/bin/konsole
-session
10cec7d36b000132792037300000100040021_1331979787_178488
79,4 µs/s 7,5 Process [ksoftirqd/2]
143,2 µs/s 6,5 Process [irq/43-ahci]
7,9 ms/s 2,8 Process /usr/bin/plasma-desktop
66,6 µs/s 5,6 Process [ksoftirqd/0]
243,3 µs/s 4,6 Process [irq/16-mmc0]
400,8 µs/s 3,5 Timer tick_sched_timer
39,9 µs/s 2,9 Process [ksoftirqd/1]
19,9 µs/s 2,6 Process [btrfs-endio-met]
92,2 µs/s 1,9 Process [scsi_eh_2]
19,2 µs/s 1,9 Interrupt [16] mmc0
16,8 µs/s 1,6 Process [ksoftirqd/3]
150,0 µs/s 1,5 Process /usr/bin/dirmngr
--daemon --sh
361,7 µs/s 1,2 Process [btrfs-transacti]
221,6 µs/s 1,2 Process /usr/lib/upower/upowerd
40,1 µs/s 1,1 Process [irq/9-acpi]
241,0 µs/s 1,0 kWork disk_events_workfn
107,8 µs/s 1,1 Process /usr/bin/python
/usr/bin/hp-systray
124,5 µs/s 1,0 kWork cache_reap
291,0 µs/s 0,8 Process /usr/bin/dbus-daemon
--system
194,3 µs/s 0,8 Process kdeinit4: kded4 [kdeinit]
18,7 µs/s 0,7 Interrupt [43] SATA controller
580,1 µs/s 0,5 Process ksysguardd
148,5 µs/s 0,5 Process /usr/bin/virtuoso-t
+foreground +configfile
/tmp/virtuoso_jd2710.ini +wait
106,5 µs/s 0,5 Process udisks-daemon: polling
/dev/sr0
16,0 µs/s 0,5 kWork e1000_watchdog_task
3,7 µs/s 0,5 kWork wq_barrier_func
2,6 µs/s 0,5 kWork
i915_gem_retire_work_handler
33,7 µs/s 0,5 kWork gen6_pm_rps_work
Summary: 261,3 wakeups/second, 0,0 GPU ops/second and 0,0 VFS ops/sec
Usage Events/s Category Description
100,0% Device Audio codec hwC0D0:
Conexant
100,0% Device Audio codec hwC0D3: Intel
6,7 ms/s 75,1 Process kwin -session
10cec7d36b000131558400500000159990000_1331979787_317189
10,6 ms/s 57,5 Process /usr/bin/X :0 vt7 -br
-nolisten tcp -auth
/var/run/xauth/A:0-5Zjkna
1,3 ms/s 39,4 Process [irq/44-i915]
273,0 µs/s 19,5 Interrupt [44] i915
0,9 ms/s 16,5 Timer hrtimer_wakeup
1,5 ms/s 6,8 Process /usr/bin/konsole
-session
10cec7d36b000132792037300000100040021_1331979787_178488
81,0 µs/s 5,9 Process [ksoftirqd/2]
164,2 µs/s 5,2 Process [irq/43-ahci]
6,1 ms/s 2,1 Process /usr/bin/plasma-desktop
50,1 µs/s 4,1 Process [ksoftirqd/1]
21,1 µs/s 2,8 Interrupt [43] SATA controller
345,4 µs/s 2,2 Timer tick_sched_timer
114,2 µs/s 2,2 Process [irq/16-mmc0]
39,0 µs/s 2,1 Process [btrfs-endio-met]
91,0 µs/s 2,0 Process [scsi_eh_2]
4,5 ms/s 0,1 Process /usr/bin/korgac --icon
korgac
30,1 µs/s 1,6 Process [ksoftirqd/0]
148,8 µs/s 1,5 Process /usr/bin/dirmngr
--daemon --sh
0,7 ms/s 1,0 kWork disk_events_workfn
467,7 µs/s 1,0 Process [btrfs-transacti]
123,1 µs/s 1,1 kWork cache_reap
66,7 µs/s 1,0 Process /usr/bin/python
/usr/bin/hp-systray
1,0 ms/s 0,5 Process /usr/bin/virtuoso-t
+foreground +configfile
/tmp/virtuoso_jd2710.ini +wait
97,0 µs/s 0,8 Process udisks-daemon: polling
/dev/sr0
660,9 µs/s 0,5 Process ksysguardd
8,0 µs/s 0,8 Process [ksoftirqd/3]
15,7 µs/s 0,5 kWork e1000_watchdog_task
3,4 µs/s 0,5 kWork wq_barrier_func
3,2 µs/s 0,5 kWork
i915_gem_retire_work_handler
170,3 µs/s 0,4 Process [btrfs-submit-1]
26,3 µs/s 0,5 kWork gen6_pm_rps_work
1,1 µs/s 0,4 kWork cfq_kick_queue
120,2 µs/s 0,4 Process kdeinit4: kded4 [kdeinit]
39,9 µs/s 0,4 Process /usr/bin/gpg-agent
--daemon --sh --write-env-
file=/home/martin/.gnupg/gpg-agent-info-m
Indeed plasma-desktop appears in the list now, but IMHO thats almost
unavoidable with it being one of the few desktop processes that were
running at that time. I have seen it with 2 to about 10 events per
second which doesn´t seem that much of it. That is with a picture of
the day widget, customer weather widget and some CPU, memory and
harddisk status widgets.
So maybe thats a better measurement. The amount of events per second in
plasma-desktop itself instead of the complete amount of wakeups or in
relation to it.
2 to 10 events from plasma-desktop in relation to 250-400 wakeups per
second doesn´t sound that much to me.
Depending on the hardware you use there might be some other power
related options that make sense to use. For Intel Sandybridge that is at
least RC6 power saving mode for integrated graphics, but I use some
other options as well. The RC6 option should make the biggest difference
and is not on by default for Sandybridge in 3.2.
Ciao,
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
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