* [Xenomai-help] high latencies with Intel P45 ICH10
@ 2009-07-31 9:56 Theo Veenker
2009-08-06 15:20 ` Gilles Chanteperdrix
0 siblings, 1 reply; 4+ messages in thread
From: Theo Veenker @ 2009-07-31 9:56 UTC (permalink / raw)
To: Xenomai help
Hi,
I'm replacing a number of old machines in our lab by new ones with an
MSI P45 Neo3 mobo. On the new hardware I'm seeing high latencies with
Xenomai 2.4.8 on kernel 2.6.29.5. The latency thingy reports many
overruns:
RTT| 00:00:01 (periodic user-mode task, 100 us period, priority 99)
RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat worst
RTD| 4.083| 9.100| 9.807| 0| 4.083| 9.807
RTD| 4.137| 9.280| 1804.493| 18| 4.083| 1804.493
RTD| 3.451| 9.099| 14.337| 18| 3.451| 1804.493
RTD| 3.864| 9.281| 1820.762| 36| 3.451| 1820.762
RTD| 4.017| 9.102| 9.917| 36| 3.451| 1820.762
RTD| 4.121| 9.273| 1742.710| 53| 3.451| 1820.762
I've tried UP/SMP both with and without disabling SMI. No CONFIG_ACPI_PROCESSOR
etc. PCI_MSI is disabled too. I do not see the "Xenomai: SMI-enabled chipset
found..." message in the messages log file. Is that correct or is this hardware
too new for this version of Xenomai?
Here's the output of lspci:
00:00.0 Host bridge: Intel Corporation Eaglelake DRAM Controller (rev 02)
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, fast devsel, latency 0
Capabilities: [e0] Vendor Specific Information
00:01.0 PCI bridge: Intel Corporation Eaglelake PCI Express Root Port (rev 02) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: fe900000-fe9fffff
Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
Capabilities: [88] Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Capabilities: [80] Power Management version 3
Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
Capabilities: [a0] Express Root Port (Slot+) IRQ 0
Capabilities: [100] Virtual Channel
Capabilities: [140] Unknown (5)
00:1a.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #4 (prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, medium devsel, latency 0, IRQ 10
I/O ports at bc00 [size=32]
Capabilities: [50] #13 [0306]
00:1a.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #5 (prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, medium devsel, latency 0, IRQ 11
I/O ports at b880 [size=32]
Capabilities: [50] #13 [0306]
00:1a.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #6 (prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, medium devsel, latency 0, IRQ 15
I/O ports at b800 [size=32]
Capabilities: [50] #13 [0306]
00:1a.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #2 (prog-if 20 [EHCI])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, medium devsel, latency 0, IRQ 14
Memory at fe8ffc00 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port
Capabilities: [98] #13 [0306]
00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, fast devsel, latency 0, IRQ 3
Memory at fe8f8000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
Capabilities: [70] Express Unknown type IRQ 0
Capabilities: [100] Virtual Channel
Capabilities: [130] Unknown (5)
00:1c.0 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Port 1 (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fea00000-feafffff
Capabilities: [40] Express Root Port (Slot+) IRQ 0
Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
Capabilities: [90] Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Capabilities: [a0] Power Management version 2
Capabilities: [100] Virtual Channel
Capabilities: [180] Unknown (5)
00:1c.1 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Port 2 (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Capabilities: [40] Express Root Port (Slot+) IRQ 0
Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
Capabilities: [90] Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Capabilities: [a0] Power Management version 2
Capabilities: [100] Virtual Channel
Capabilities: [180] Unknown (5)
00:1c.5 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Port 6 (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: feb00000-febfffff
Prefetchable memory behind bridge: 00000000fdf00000-00000000fdffffff
Capabilities: [40] Express Root Port (Slot+) IRQ 0
Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
Capabilities: [90] Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Capabilities: [a0] Power Management version 2
Capabilities: [100] Virtual Channel
Capabilities: [180] Unknown (5)
00:1d.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #1 (prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, medium devsel, latency 0, IRQ 6
I/O ports at b480 [size=32]
Capabilities: [50] #13 [0306]
00:1d.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #2 (prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, medium devsel, latency 0, IRQ 15
I/O ports at b400 [size=32]
Capabilities: [50] #13 [0306]
00:1d.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #3 (prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, medium devsel, latency 0, IRQ 14
I/O ports at b080 [size=32]
Capabilities: [50] #13 [0306]
00:1d.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #1 (prog-if 20 [EHCI])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, medium devsel, latency 0, IRQ 6
Memory at fe8ff800 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port
Capabilities: [98] #13 [0306]
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90) (prog-if 01 [Subtractive decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=05, subordinate=05, sec-latency=32
Capabilities: [50] Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
00:1f.0 ISA bridge: Intel Corporation 82801JIR (ICH10R) LPC Interface Controller
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, medium devsel, latency 0
Capabilities: [e0] Vendor Specific Information
00:1f.2 SATA controller: Intel Corporation 82801JI (ICH10 Family) SATA AHCI Controller (prog-if 01 [AHCI 1.0])
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 15
I/O ports at b000 [size=8]
I/O ports at ac00 [size=4]
I/O ports at a880 [size=8]
I/O ports at a800 [size=4]
I/O ports at a480 [size=32]
Memory at fe8ff000 (32-bit, non-prefetchable) [size=2K]
Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Queue=0/4 Enable-
Capabilities: [70] Power Management version 3
Capabilities: [a8] #12 [0010]
Capabilities: [b0] #13 [0306]
00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller
Subsystem: Micro-Star International Co., Ltd. Unknown device 7514
Flags: medium devsel, IRQ 14
Memory at fe8fec00 (64-bit, non-prefetchable) [size=256]
I/O ports at 0400 [size=32]
01:00.0 VGA compatible controller: ATI Technologies Inc Unknown device 9490 (prog-if 00 [VGA controller])
Subsystem: PC Partner Limited Unknown device e100
Flags: bus master, fast devsel, latency 0, IRQ 10
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at fe9f0000 (64-bit, non-prefetchable) [size=64K]
I/O ports at c000 [size=256]
Expansion ROM at fe9c0000 [disabled] [size=128K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint IRQ 0
Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
Capabilities: [100] Unknown (11)
01:00.1 Audio device: ATI Technologies Inc Unknown device aa38
Subsystem: PC Partner Limited Unknown device aa38
Flags: bus master, fast devsel, latency 0, IRQ 5
Memory at fe9ec000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint IRQ 0
Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
Capabilities: [100] Unknown (11)
02:00.0 SATA controller: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller (rev 03) (prog-if 01 [AHCI 1.0])
Subsystem: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller
Flags: bus master, fast devsel, latency 0, IRQ 10
Memory at feafe000 (32-bit, non-prefetchable) [size=8K]
Capabilities: [68] Power Management version 2
Capabilities: [50] Express Legacy Endpoint IRQ 1
02:00.1 IDE interface: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller (rev 03) (prog-if 85 [Master SecO PriO])
Subsystem: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller
Flags: fast devsel, IRQ 5
I/O ports at dc00 [size=8]
I/O ports at d880 [size=4]
I/O ports at d800 [size=8]
I/O ports at d480 [size=4]
I/O ports at d400 [size=16]
Capabilities: [68] Power Management version 2
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
Subsystem: Micro-Star International Co., Ltd. Unknown device 514c
Flags: bus master, fast devsel, latency 0, IRQ 5
I/O ports at e800 [size=256]
Memory at fdfff000 (64-bit, prefetchable) [size=4K]
Memory at fdfe0000 (64-bit, prefetchable) [size=64K]
[virtual] Expansion ROM at fdf00000 [disabled] [size=64K]
Capabilities: [40] Power Management version 3
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ Queue=0/1 Enable-
Capabilities: [70] Express Endpoint IRQ 1
Capabilities: [b0] MSI-X: Enable- Mask- TabSize=2
Capabilities: [d0] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
Hope someone has a suggestion.
Theo
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Xenomai-help] high latencies with Intel P45 ICH10
2009-07-31 9:56 [Xenomai-help] high latencies with Intel P45 ICH10 Theo Veenker
@ 2009-08-06 15:20 ` Gilles Chanteperdrix
2009-08-07 7:39 ` Theo Veenker
0 siblings, 1 reply; 4+ messages in thread
From: Gilles Chanteperdrix @ 2009-08-06 15:20 UTC (permalink / raw)
To: Theo Veenker; +Cc: Xenomai help
Theo Veenker wrote:
> Hi,
>
> I'm replacing a number of old machines in our lab by new ones with an
> MSI P45 Neo3 mobo. On the new hardware I'm seeing high latencies with
> Xenomai 2.4.8 on kernel 2.6.29.5. The latency thingy reports many
> overruns:
> RTT| 00:00:01 (periodic user-mode task, 100 us period, priority 99)
> RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat worst
> RTD| 4.083| 9.100| 9.807| 0| 4.083| 9.807
> RTD| 4.137| 9.280| 1804.493| 18| 4.083| 1804.493
> RTD| 3.451| 9.099| 14.337| 18| 3.451| 1804.493
> RTD| 3.864| 9.281| 1820.762| 36| 3.451| 1820.762
> RTD| 4.017| 9.102| 9.917| 36| 3.451| 1820.762
> RTD| 4.121| 9.273| 1742.710| 53| 3.451| 1820.762
>
> I've tried UP/SMP both with and without disabling SMI. No CONFIG_ACPI_PROCESSOR
> etc. PCI_MSI is disabled too. I do not see the "Xenomai: SMI-enabled chipset
> found..." message in the messages log file. Is that correct or is this hardware
> too new for this version of Xenomai?
Probably, the table of supported PCI ids is in arch/x86/smi.c
--
Gilles
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [Xenomai-help] high latencies with Intel P45 ICH10
2009-08-06 15:20 ` Gilles Chanteperdrix
@ 2009-08-07 7:39 ` Theo Veenker
2009-08-07 10:19 ` Gilles Chanteperdrix
0 siblings, 1 reply; 4+ messages in thread
From: Theo Veenker @ 2009-08-07 7:39 UTC (permalink / raw)
To: Gilles Chanteperdrix; +Cc: Xenomai help
Gilles Chanteperdrix wrote:
> Theo Veenker wrote:
>> Hi,
>>
>> I'm replacing a number of old machines in our lab by new ones with an
>> MSI P45 Neo3 mobo. On the new hardware I'm seeing high latencies with
>> Xenomai 2.4.8 on kernel 2.6.29.5. The latency thingy reports many
>> overruns:
>> RTT| 00:00:01 (periodic user-mode task, 100 us period, priority 99)
>> RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat worst
>> RTD| 4.083| 9.100| 9.807| 0| 4.083| 9.807
>> RTD| 4.137| 9.280| 1804.493| 18| 4.083| 1804.493
>> RTD| 3.451| 9.099| 14.337| 18| 3.451| 1804.493
>> RTD| 3.864| 9.281| 1820.762| 36| 3.451| 1820.762
>> RTD| 4.017| 9.102| 9.917| 36| 3.451| 1820.762
>> RTD| 4.121| 9.273| 1742.710| 53| 3.451| 1820.762
>>
>> I've tried UP/SMP both with and without disabling SMI. No CONFIG_ACPI_PROCESSOR
>> etc. PCI_MSI is disabled too. I do not see the "Xenomai: SMI-enabled chipset
>> found..." message in the messages log file. Is that correct or is this hardware
>> too new for this version of Xenomai?
>
> Probably, the table of supported PCI ids is in arch/x86/smi.c
>
Boy, am I glad this list is rolling again. I had no idea where to look.
I have added the ID of the LPC Interface Controller. Is that the expected
thing to do? (Maybe you can add a comment about it in smi.c).
And guess what; It works! Well I need to perform a lengthy test, but the
overruns are gone now.
This is the line I've added in smi.c:
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1)},
Thanks Gilles.
Theo
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [Xenomai-help] high latencies with Intel P45 ICH10
2009-08-07 7:39 ` Theo Veenker
@ 2009-08-07 10:19 ` Gilles Chanteperdrix
0 siblings, 0 replies; 4+ messages in thread
From: Gilles Chanteperdrix @ 2009-08-07 10:19 UTC (permalink / raw)
To: Theo Veenker; +Cc: Xenomai help
Theo Veenker wrote:
> Gilles Chanteperdrix wrote:
>> Theo Veenker wrote:
>>> Hi,
>>>
>>> I'm replacing a number of old machines in our lab by new ones with an
>>> MSI P45 Neo3 mobo. On the new hardware I'm seeing high latencies with
>>> Xenomai 2.4.8 on kernel 2.6.29.5. The latency thingy reports many
>>> overruns:
>>> RTT| 00:00:01 (periodic user-mode task, 100 us period, priority 99)
>>> RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat worst
>>> RTD| 4.083| 9.100| 9.807| 0| 4.083| 9.807
>>> RTD| 4.137| 9.280| 1804.493| 18| 4.083| 1804.493
>>> RTD| 3.451| 9.099| 14.337| 18| 3.451| 1804.493
>>> RTD| 3.864| 9.281| 1820.762| 36| 3.451| 1820.762
>>> RTD| 4.017| 9.102| 9.917| 36| 3.451| 1820.762
>>> RTD| 4.121| 9.273| 1742.710| 53| 3.451| 1820.762
>>>
>>> I've tried UP/SMP both with and without disabling SMI. No CONFIG_ACPI_PROCESSOR
>>> etc. PCI_MSI is disabled too. I do not see the "Xenomai: SMI-enabled chipset
>>> found..." message in the messages log file. Is that correct or is this hardware
>>> too new for this version of Xenomai?
>> Probably, the table of supported PCI ids is in arch/x86/smi.c
>>
>
> Boy, am I glad this list is rolling again. I had no idea where to look.
> I have added the ID of the LPC Interface Controller. Is that the expected
> thing to do? (Maybe you can add a comment about it in smi.c).
Yes. In fact, there should be a way to dynamically add ids to the table
with /sys, but I need to see how to get this working.
>
> And guess what; It works! Well I need to perform a lengthy test, but the
> overruns are gone now.
>
> This is the line I've added in smi.c:
> {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1)},
Ok. I will add it then, thanks.
>
> Thanks Gilles.
>
> Theo
>
>
--
Gilles
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2009-08-07 10:19 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-07-31 9:56 [Xenomai-help] high latencies with Intel P45 ICH10 Theo Veenker
2009-08-06 15:20 ` Gilles Chanteperdrix
2009-08-07 7:39 ` Theo Veenker
2009-08-07 10:19 ` Gilles Chanteperdrix
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