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Message-ID: <20070508100657.GZ3505@sequoia.sous-sol.org>
Date: Tue, 8 May 2007 03:06:57 -0700
From: Chris Wright <chrisw@...s-sol.org>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: Chris Wright <chrisw@...s-sol.org>,
LKML <linux-kernel@...r.kernel.org>,
Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
john stultz <johnstul@...ibm.com>, Ingo Molnar <mingo@...e.hu>,
Arjan van de Ven <arjan@...radead.org>,
Steven Rostedt <rostedt@...dmis.org>, Andi Kleen <ak@...e.de>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] x86-64 highres/dyntick support
* Thomas Gleixner (tglx@...utronix.de) wrote:
> Hmm, that's even more strange. Can you please provide the output
> of /proc/timer_list ?
It's quite normal looking, and a printk in clockevents_set_mode looks normal too.
[chrisw@...alhost ~]$ cat /proc/timer_list
Timer List Version: v0.3
HRTIMER_MAX_CLOCK_BASES: 2
now at 313565930359 nsecs
cpu: 0
clock 0:
.index: 0
.resolution: 4000250 nsecs
.get_time: ktime_get_real
active timers:
clock 1:
.index: 1
.resolution: 4000250 nsecs
.get_time: ktime_get
active timers:
#0: <ffff810150223e38>, hrtimer_wakeup, S:01
# expires at 313700587872 nsecs [in 134657513 nsecs]
#1: <ffff810150223e38>, it_real_fn, S:01
# expires at 332024684987 nsecs [in 18458754628 nsecs]
#2: <ffff810150223e38>, hrtimer_wakeup, S:01
# expires at 337032779067 nsecs [in 23466848708 nsecs]
#3: <ffff810150223e38>, hrtimer_wakeup, S:01
# expires at 1851212334864 nsecs [in 1537646404505 nsecs]
#4: <ffff810150223e38>, it_real_fn, S:01
# expires at 3635317355388 nsecs [in 3321751425029 nsecs]
#5: <ffff810150223e38>, it_real_fn, S:01
# expires at 3635630194993 nsecs [in 3322064264634 nsecs]
cpu: 1
clock 0:
.index: 0
.resolution: 4000250 nsecs
.get_time: ktime_get_real
active timers:
clock 1:
.index: 1
.resolution: 4000250 nsecs
.get_time: ktime_get
active timers:
cpu: 2
clock 0:
.index: 0
.resolution: 4000250 nsecs
.get_time: ktime_get_real
active timers:
clock 1:
.index: 1
.resolution: 4000250 nsecs
.get_time: ktime_get
active timers:
cpu: 3
clock 0:
.index: 0
.resolution: 4000250 nsecs
.get_time: ktime_get_real
active timers:
clock 1:
.index: 1
.resolution: 4000250 nsecs
.get_time: ktime_get
active timers:
#0: <ffff810150223e38>, it_real_fn, S:01
# expires at 313558625026 nsecs [in -7305333 nsecs]
#1: <ffff810150223e38>, hrtimer_wakeup, S:01
# expires at 369334850252 nsecs [in 55768919893 nsecs]
#2: <ffff810150223e38>, it_real_fn, S:01
# expires at 3936979059363 nsecs [in 3623413129004 nsecs]
Tick Device: mode: 0
Clock Event Device: hpet
max_delta_ns: 85899346200
min_delta_ns: 1920
mult: 107374182
shift: 32
mode: 2
next_event: 9223372036854775807 nsecs
set_next_event: hpet_next_event
set_mode: hpet_set_mode
event_handler: tick_handle_periodic_broadcast
tick_broadcast_mask: 00000001
Tick Device: mode: 0
Clock Event Device: lapic
max_delta_ns: 671088687
min_delta_ns: 1200
mult: 53687081
shift: 32
mode: 1
next_event: 0 nsecs
set_next_event: lapic_next_event
set_mode: lapic_timer_setup
event_handler: tick_handle_periodic
Tick Device: mode: 0
Clock Event Device: lapic
max_delta_ns: 671088687
min_delta_ns: 1200
mult: 53687081
shift: 32
mode: 2
next_event: 0 nsecs
set_next_event: lapic_next_event
set_mode: lapic_timer_setup
event_handler: tick_handle_periodic
Tick Device: mode: 0
Clock Event Device: lapic
max_delta_ns: 671088687
min_delta_ns: 1200
mult: 53687081
shift: 32
mode: 2
next_event: 0 nsecs
set_next_event: lapic_next_event
set_mode: lapic_timer_setup
event_handler: tick_handle_periodic
Tick Device: mode: 0
Clock Event Device: lapic
max_delta_ns: 671088687
min_delta_ns: 1200
mult: 53687081
shift: 32
mode: 2
next_event: 0 nsecs
set_next_event: lapic_next_event
set_mode: lapic_timer_setup
event_handler: tick_handle_periodic
[chrisw@...alhost ~]$ grep -e 0: -e LOC: /proc/interrupts
0: 72 2 58 36008 IO-APIC-edge timer
LOC: 36655 36772 36725 36683
[chrisw@...alhost ~]$ grep -e 0: -e LOC: /proc/interrupts
0: 72 2 58 36165 IO-APIC-edge timer
LOC: 36812 36929 36882 36840
[chrisw@...alhost ~]$ grep -e 0: -e LOC: /proc/interrupts
0: 72 2 58 36297 IO-APIC-edge timer
LOC: 36944 37061 37014 36972
[chrisw@...alhost ~]$ grep -e 0: -e LOC: /proc/interrupts
0: 72 2 58 36424 IO-APIC-edge timer
LOC: 37071 37188 37141 37099
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