Bruce Evans wrote:
On Tue, 26 Aug 2003, John Baldwin wrote:
On 26-Aug-2003 Yamada Ken Takeshi wrote:
[...]
One test is not sufficient. -current is also not the best
place to test. :) When I first implemented HTT in -current
The above times seem slow enough to be partly the result of
debugging
On Tue, 26 Aug 2003, John Baldwin wrote:
On 26-Aug-2003 Yamada Ken Takeshi wrote:
JYI,
I tested machdep.hlt_logical_cpus=0/1, buildworld,
and found no particular reason to disable HTT
as below with Zeon 2.8Ghz x 2, 1GBmem, Slow IDE HDD.
It may not be the common case, so just for
JYI,
I tested machdep.hlt_logical_cpus=0/1, buildworld,
and found no particular reason to disable HTT
as below with Zeon 2.8Ghz x 2, 1GBmem, Slow IDE HDD.
It may not be the common case, so just for your info.
# sysctl machdep.hlt_logical_cpus=0
# /usr/bin/time make -j32 buildworld
On 26-Aug-2003 Yamada Ken Takeshi wrote:
JYI,
I tested machdep.hlt_logical_cpus=0/1, buildworld,
and found no particular reason to disable HTT
as below with Zeon 2.8Ghz x 2, 1GBmem, Slow IDE HDD.
It may not be the common case, so just for your info.
# sysctl
Strange
Mine (Supermicro X5DAL-G) goes like ;
tyd3# dmesg
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 5.1-CURRENT #30: Sun Aug 24
-Original Message-
From: Sang Woo Shim [mailto:[EMAIL PROTECTED]
Sent: Saturday, August 23, 2003 1:58 AM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: HTT on current
On Fri, Aug 22, 2003 at 10:23:52PM -0400, [EMAIL PROTECTED] wrote:
Well i've enabled all SMP options
PROTECTED]
Subject: Re: HTT on current
yes:
ganymede# grep SMP /usr/src/sys/i386/conf/kernel
options SMP # Symmetric MultiProcessor Kernel
and:
CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2393.19-MHz 686-class CPU)
Origin = GenuineIntel Id = 0xf27 Stepping = 7
]; [EMAIL PROTECTED]
Subject: Re: HTT on current
yes:
ganymede# grep SMP /usr/src/sys/i386/conf/kernel
options SMP # Symmetric MultiProcessor Kernel
and:
CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2393.19-MHz 686-class CPU)
Origin = GenuineIntel Id = 0xf27 Stepping = 7
24, 2003 12:49 PM
To: Kris Kennaway
Cc: Yamada Ken Takeshi; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: HTT on current
yes:
ganymede# grep SMP /usr/src/sys/i386/conf/kernel
options SMP # Symmetric MultiProcessor Kernel
and:
CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz
On Mon, Aug 25, 2003 at 08:27:46AM -0600, Scott Long wrote:
Since HTT can lead to performance degradation in some (many?) cases,
the second logical CPU's are halted by default. They are enabled,
however, in order for interrupt routing to work right. Work is ongoing
to make an HTT-aware
David O'Brien wrote:
On Mon, Aug 25, 2003 at 08:27:46AM -0600, Scott Long wrote:
Since HTT can lead to performance degradation in some (many?) cases,
the second logical CPU's are halted by default. They are enabled,
however, in order for interrupt routing to work right. Work is ongoing
to make
On Mon, 25 Aug 2003 14:14:18 -0300, Daniel C. Sobral [EMAIL PROTECTED] said:
There are two problems with HTT. First, L1/L2 cache issues. Second, the
virtual CPUs are not independent, and there are many cases where
instructions in one virtual CPU stall the other. So take, for example,
the
On Mon, Aug 25, 2003 at 02:14:18PM -0300, Daniel C. Sobral wrote:
I've heard this several times and don't doubt it, but it would be nice to
know more about the issue. What type of cases? What benchmarks have
been run showing this?
Well, I haven't actually seen any case where there was a
On 23-Aug-2003 [EMAIL PROTECTED] wrote:
On Fri, Aug 22, 2003 at 07:03:03PM -0400, [EMAIL PROTECTED] wrote:
That is not an SMP kernel. An SMP kernel (with APIC_IO) would not
print
out
the pcib0 interrupt routing messages.
--
So whats the problem here?
See above.
How come the CPUs
On Fri, Aug 22, 2003 at 10:23:52PM -0400, [EMAIL PROTECTED] wrote:
Well i've enabled all SMP options, recompiled and rebooted. The CPUs now
properly show up in dmesg and i can see the C header in top. However no
processes seem to be being assigned to cpu 1. Why is the schedueler only
using
Did you do sysctl machdep.hlt_logical_cpus=0?
Default setting halt logical CPUs, and won't start HTT.
This is a kind of FAQ, and you will see a lot in the past
mailing-list.
___
[EMAIL PROTECTED] mailing list
+--- On Saturday, August 23, 2003 21:18,
| [EMAIL PROTECTED] proclaimed:
|
| On Fri, Aug 22, 2003 at 10:23:52PM -0400, [EMAIL PROTECTED] wrote:
| Well i've enabled all SMP options, recompiled and rebooted. The CPUs
| now properly show up in dmesg and i can see the C header in top.
| However no
On Sun, Aug 24, 2003 at 01:06:28PM -0300, Marc G. Fournier wrote:
ganymede# sysctl machdep.hlt_logical_cpus
sysctl: unknown oid 'machdep.hlt_logical_cpus'
ganymede# uname -a
FreeBSD ganymede.hub.org 5.1-CURRENT FreeBSD 5.1-CURRENT #1: Sat Aug 23 00:08:54 ADT
2003 [EMAIL
Hi,
I have a HTT capabale PCU on an Intel MB with the 875P chipset. I have
enabled HTT in the BIOS and compiled my kernel with the required SMP
options, however i dont think the system is really running in SMP mode. Top
does not display CPU numbers. Here is my dmesg:
---
FreeBSD
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Kenneth Culver
Sent: Friday, August 22, 2003 4:33 PM
To: Mike Jakubik
Cc: [EMAIL PROTECTED]
Subject: Re: HTT on current
Hi,
I have a HTT capabale PCU on an Intel MB with the 875P
chipset. I have
enabled
That is not an SMP kernel. An SMP kernel (with APIC_IO) would not print out
the pcib0 interrupt routing messages.
--
John Baldwin [EMAIL PROTECTED]http://www.FreeBSD.org/~jhb/
Power Users Use the Power to Serve! - http://www.FreeBSD.org/
___
That is not an SMP kernel. An SMP kernel (with APIC_IO) would not print
out
the pcib0 interrupt routing messages.
--
So whats the problem here? How come the CPUs dont show up in top. How do i
realy know the system sees 2, and actually utilizes them? Is there
anything else i have to do other
That is not an SMP kernel. An SMP kernel (with APIC_IO) would not print
out
the pcib0 interrupt routing messages.
--
So whats the problem here? How come the CPUs dont show up in top. How do i
realy know the system sees 2, and actually utilizes them? Is there
anything else i have to do
On Fri, Aug 22, 2003 at 07:03:03PM -0400, [EMAIL PROTECTED] wrote:
That is not an SMP kernel. An SMP kernel (with APIC_IO) would not print
out
the pcib0 interrupt routing messages.
--
So whats the problem here?
See above.
How come the CPUs dont show up in top.
See above.
How do
On Fri, Aug 22, 2003 at 07:03:03PM -0400, [EMAIL PROTECTED] wrote:
That is not an SMP kernel. An SMP kernel (with APIC_IO) would not
print
out
the pcib0 interrupt routing messages.
--
So whats the problem here?
See above.
How come the CPUs dont show up in top.
See above.
How
On Fri, Aug 22, 2003 at 10:23:52PM -0400, [EMAIL PROTECTED] wrote:
Well i've enabled all SMP options, recompiled and rebooted. The CPUs now
properly show up in dmesg and i can see the C header in top. However no
processes seem to be being assigned to cpu 1. Why is the schedueler only
using
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