Messages in this thread Patch in this message |  | | | Date | Sun, 4 Apr 2010 12:35:15 +0200 | | From | Dominik Brodowski <> | | Subject | Re: A few questions and issues with dynticks, NOHZ and powertop |
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Hi Dmitry,
On Sat, Apr 03, 2010 at 04:53:26PM -0700, Dmitry Torokhov wrote: > On Sun, Apr 04, 2010 at 12:33:28AM +0200, Dominik Brodowski wrote: > > > > 4) SynPS/2 touchpad: > > Why does moving the touchpad lead to sooo many IRQs? I can't look as fast > > as the mouse pointer seems to get new data: > > 62,5% (473,1) <interrupt> : PS/2 keyboard/mouse/touchpad > > > > 80 pps @ 6 bytes/packet = 480 interrupts/sec. > > You can try using psmouse.rate=40 to limit it to 40 pps which should > bring it to the rate of standard PS/2 mouse at the expense of > sensitivity...
Excellent. Maybe this could be added to the Tips&Tricks section at the Powertop website?
I guess obtaining all 6 bytes at once is not really possible? It seems a new byte only appears ~1.75 ms after the last one, at least on my notebook, so waiting for this is not an option...
Best, Dominik
PS: Dmitry, got something small for you in return:
[PATCH] i8042: spelling fix
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index 9302ba0..f61233e 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -38,7 +38,7 @@ MODULE_PARM_DESC(noaux, "Do not probe or use AUX (mouse) port."); static bool i8042_nomux; module_param_named(nomux, i8042_nomux, bool, 0); -MODULE_PARM_DESC(nomux, "Do not check whether an active multiplexing conrtoller is present."); +MODULE_PARM_DESC(nomux, "Do not check whether an active multiplexing controller is present."); static bool i8042_unlock; module_param_named(unlock, i8042_unlock, bool, 0);
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