Re: 2.4.22pre6aa1

Marc-Christian Petersen
2003-07-17T22:19:35Z

On Friday 18 July 2003 00:13, Marc-Christian Petersen wrote:

> On Thursday 17 July 2003 12:28, Andrea Arcangeli wrote:
>
> Hi Andrea,
>
> > Only in 2.4.22pre6aa1: 00_elevator-lowlatency-1
> > Only in 2.4.22pre6aa1: 00_elevator-read-reservation-axboe-2l-1
>
> Hmm, this is now my first day testing out .22-pre6 and .22-pre6aa1 with the
> new I/O stall fixes. At a first look & feel it's very good, but I've
> noticed a side effect (if it can be called so):
>
> VMware4 Workstation
> -------------------
>
> 2.4.22-pre[6|6aa1]: ~ 1 minute 02 seconds from: Start this virtual machine
> ... 2.4.22-pre2 : ~ 30 seconds from: Start this virtual
> machine ...
>
> ... to start up Windows 2000 Professional completely.
>
> Well, personally I don't care about the slowdown of vmware startup with a
> VM but there may be many other slowdows?!
hmmm:

2.4.22-pre[6|6aa1]:
-------------------
root@codeman:[/] # dd if=/dev/zero of=/home/largefile bs=16384 count=131072
131072+0 records in
131072+0 records out
2147483648 bytes transferred in 128.765686 seconds (16677453 bytes/sec)

2.4.22-pre2:
------------
root@codeman:[/] # dd if=/dev/zero of=/home/largefile bs=16384 count=131072
131072+0 records in
131072+0 records out
2147483648 bytes transferred in 98.489331 seconds (21804226 bytes/sec)

both kernels freshly rebooted.

Machine:
--------
Celeron 1,3GHz
512MB RAM
2x IDE (UDMA100) 60/40 GB
1GB SWAP, 512MB on each disk (same priority)
ext3fs (data=ordered)
XFree 4.3
WindowMaker 0.82-CVS

ciao, Marc