test13-pre7...

test13-pre7...

[Linus Torvalds]

The LDT fixes in particular fix some potentially random strange behaviour.
And the alpha memmove() thing was a showstopper bug on alphas.

		Linus

----

 - pre7:
   - x86 LDT handling fixes: revert some cleanups (the LDT really
     doesn't act like a TLB context)
   - Richard Henderson: alpha update (working memmove() from Ivan
     Kokshaysky etc)
   - Manfred: winbond-840.c net driver update (fix oops on module unload etc)
   - Alan Cox: more synchronizations (with some fixes from Andrew Morton)

 - pre6:
   - Marc Joosen: BIOS int15/e820 memory query: don't assume %edx
     unchanged by the BIOS. Fixes at least some IBM ThinkPads.
   - Alan Cox: synchronize
   - Marcelo Tosatti & me: properly sync dirty pages
   - Andreas Dilger: proper ext2 compat flag checking

 - pre5:
   - NIIBE Yutaka: SuperH update
   - Geert Uytterhoeven: m68k update
   - David Miller: TCP RTO calc fix, UDP multicast fix etc
   - Duncan Laurie: ServerWorks PIRQ routing definition.
   - mm PageDirty cleanups, added sanity checks, and don't lose the bit. 

 - pre4:
   - Christoph Rohland: shmfs cleanup
   - Nicolas Pitre: don't forget loop.c flags
   - Geert Uytterhoeven: new-style m68k Makefiles
   - Neil Brown: knfsd cleanups, raid5 re-org
   - Andrea Arkangeli: update to LVM-0.9
   - LC Chang: sis900 driver doc update
   - David Miller: netfilter oops fix
   - Andrew Grover: acpi update

 - pre3:
   - Christian Jullien: smc9194: proper dev_kfree_skb_irq
   - Cort Dougan: new-style PowerPC Makefiles
   - Andrew Morton, Petr Vandrovec: fix run_task_queue
   - Christoph Rohland: shmfs for shared memory handling

 - pre2:
   - Kai Germaschewski: ISDN update (including Makefiles)
   - Jens Axboe: cdrom updates
   - Petr Vandrovec; Matrox G450 support
   - Bill Nottingham: fix FAT32 filesystems on 64-bit platforms
   - David Miller: sparc (and other) Makefile fixup
   - Andrea Arkangeli: alpha SMP TLB context fix (and cleanups)
   - Niels Kristian Bech Jensen: checkconfig, USB warnings
   - Andrew Grover: large ACPI update

 - pre1:
   - me: drop support for old-style Makefiles entirely. Big.
   - me: check b_end_io at the IO submission path
   - me: fix "ptep_mkdirty()" (so that swapoff() works correctly)
   - fix fault case in copy_from_user() with a constant size, where
     ((size & 3) == 3)


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Re: test13-pre7...

[Ray Strode]

>The LDT fixes in particular fix some potentially random strange behaviour.
>And the alpha memmove() thing was a showstopper bug on alphas.
And the network lockup bug...

--Ray



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Re: test13-pre7...

[Steven Cole]

It looks like 2.4.0-test13-pre7 is a clear winner when running dbench 48
on my somewhat slow test machine (450 Mhz P-III, 192MB, IDE).

2.2.18                3.53307 MB/sec (NB=4.41633 MB/sec  35.3307 MBit/sec)
2.2.19-pre3           3.81213 MB/sec (NB=4.76516 MB/sec  38.1213 MBit/sec)
2.4.0-test13-pre5     4.06823 MB/sec (NB=5.08529 MB/sec  40.6823 MBit/sec)
2.4.0-test13-pre6     4.11353 MB/sec (NB=5.14192 MB/sec  41.1353 MBit/sec)
2.4.0-test13pre4-ac2  4.47376 MB/sec (NB=5.5922  MB/sec  44.7376 MBit/sec)
2.4.0-test13-pre7     6.3723  MB/sec (NB=7.96538 MB/sec  63.723  MBit/sec)

The tests were done under identical conditions, after fresh boot-up,
running KDE 2.0, one xterm, and xosview.

Here are a few selected lines from dmesg to put things in perspective.

Detected 448.810 MHz processor.
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
hda: ST317221A, ATA DISK drive
Using r5 hash to sort names
reiserfs: using 3.5.x disk format
ReiserFS version 3.6.23

This is really looking great.

Steven
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Re: test13-pre7...

[Linus Torvalds]

On Sat, 30 Dec 2000, Steven Cole wrote:
>
> It looks like 2.4.0-test13-pre7 is a clear winner when running dbench 48
> on my somewhat slow test machine (450 Mhz P-III, 192MB, IDE).

This is almost certainly purely due to changing (some would say "fixing")
the bdflush synchronous wait point.

No actual code was harmed in the making of this improvement.

But I will take full credit anyway.

		Linus

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Re: test13-pre7...

[J Sloan]

Linus Torvalds wrote:

> On Sat, 30 Dec 2000, Steven Cole wrote:
> >
> > It looks like 2.4.0-test13-pre7 is a clear winner when running dbench 48
> > on my somewhat slow test machine (450 Mhz P-III, 192MB, IDE).
>
> This is almost certainly purely due to changing (some would say "fixing")
> the bdflush synchronous wait point.
>

After evaluating test13-pre7 with the quake 3 arena test,
I think it's even snappier than the previous champ, which
was test10 + low latency patches..

A most auspicious trend, if I might make so bold as
to state it in this forum.

jjs

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Re: test13-pre7...

[Chris Evans]

On Sat, 30 Dec 2000, Linus Torvalds wrote:

> On Sat, 30 Dec 2000, Steven Cole wrote:
> >
> > It looks like 2.4.0-test13-pre7 is a clear winner when running dbench 48
> > on my somewhat slow test machine (450 Mhz P-III, 192MB, IDE).
>
> This is almost certainly purely due to changing (some would say "fixing")
> the bdflush synchronous wait point.

Nice:)

Did Rik's drop_behind performance fix make it in or can we look forward to
another jump in the dbench benchmarks?

Cheers
Chris

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Re: test13-pre7...

[Ed Tomlinson]

Chris Evans wrote:

> On Sat, 30 Dec 2000, Linus Torvalds wrote:
> 
> > On Sat, 30 Dec 2000, Steven Cole wrote:
> > >
> > > It looks like 2.4.0-test13-pre7 is a clear winner when running dbench
> > > 48 on my somewhat slow test machine (450 Mhz P-III, 192MB, IDE).
> >
> > This is almost certainly purely due to changing (some would say
> > "fixing") the bdflush synchronous wait point.
> 
> Nice:)
> 
> Did Rik's drop_behind performance fix make it in or can we look forward to
> another jump in the dbench benchmarks?

And please do not forget marcello's swap clustering patch.  I get a 13% 
improvement on dbench with reiserfs when patched with it.  From 
conversations on kernelnewbies, Riel likes this one too.

Ed Tomlinson


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