From: Phy Prabab <phyprabab@yahoo.com>
To: linux-kernel@vger.kernel.org
Subject: slow down in 2.6 vs 2.4
Date: Tue, 8 Jun 2004 20:35:13 -0700 (PDT) [thread overview]
Message-ID: <20040609033513.76754.qmail@web51807.mail.yahoo.com> (raw)
Hello!
Over the last two days I have been struggling with
understanding why 2.6.x kernel is slower than
2.4.21/23 kernels. I think I have a test case which
demostrates this issue.
I have downloaded gcc-3.4.0 and run with this config:
--enable-languages=c,c++ --prefix=/usr/tmp/foo
using gcc-3.2.3 and binutils-2.13.2.1, on IBM x335
w/2x 2.8G Xeon w/8G RAM, no ht[bios killed], using
local file system (XFS):
make times:
2.4.21:
323.68user 56.07system 6:35.77elapsed 95%CPU
(0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (3138783major+3818347minor)pagefaults
0swaps
2.6.7-rc3-s63 (SPA scheduler):
334.01user 69.86system 7:01.47elapsed 95%CPU
(0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (13301major+6931745minor)pagefaults
0swaps
2.6.7-rc3:
336.17user 68.41system 7:02.47elapsed 95%CPU
(0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (13301major+6931745minor)pagefaults
0swaps
Machine:
00:00.0 Host bridge: ServerWorks: Unknown device 0012
(rev 13)
00:00.1 Host bridge: ServerWorks: Unknown device 0012
00:00.2 Host bridge: ServerWorks: Unknown device 0000
00:01.0 VGA compatible controller: ATI Technologies
Inc Rage XL (rev 27)
00:0f.0 Host bridge: ServerWorks CSB5 South Bridge
(rev 93)
00:0f.1 IDE interface: ServerWorks CSB5 IDE Controller
(rev 93)
00:0f.2 USB Controller: ServerWorks OSB4/CSB5 OHCI USB
Controller (rev 05)
00:0f.3 ISA bridge: ServerWorks: Unknown device 0225
00:11.0 Host bridge: ServerWorks: Unknown device 0101
(rev 03)
00:11.2 Host bridge: ServerWorks: Unknown device 0101
(rev 03)
01:01.0 SCSI storage controller: Symbios Logic Inc.
(formerly NCR): Unknown device 0030 (rev 07)
01:02.0 Ethernet controller: Intel Corporation:
Unknown device 100e (rev 02)
02:01.0 Ethernet controller: BROADCOM Corporation:
Unknown device 16a7 (rev 02)
02:02.0 Ethernet controller: BROADCOM Corporation:
Unknown device 16a7 (rev 02)
Anything else needed? Is there something I can do to
try and understand this issue?
Thank you for your time.
Phy
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next reply other threads:[~2004-06-09 3:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-09 3:35 Phy Prabab [this message]
2004-06-09 19:16 ` Clint Byrum
2004-06-09 20:15 ` Bill Davidsen
-- strict thread matches above, loose matches on Subject: below --
2004-06-09 1:35 Con Kolivas
2004-06-09 4:10 ` Phy Prabab
2004-06-09 19:34 ` Paul Dickson
2004-06-09 4:41 ` Peter Williams
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