Re: Kernel support for hot-plugging PCI adapters

2001-03-05 Thread Jeff Garzik
Duane Grigsby wrote: > Any plans to add support or is there support in the 2.4 kernel for > hot-plugging a PCI adapter? It may be in the sources already, but I can't > seem to locate it. Any help would be appreciated. For devices, the support is already there. See Documentation/pci.txt. Look fo

Kernel support for hot-plugging PCI adapters

2001-03-05 Thread Duane Grigsby
Any plans to add support or is there support in the 2.4 kernel for hot-plugging a PCI adapter? It may be in the sources already, but I can't seem to locate it. Any help would be appreciated. Thanks, Duane Grigsby - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the b

Re: scsi vs ide performance on fsync's

2001-03-05 Thread Douglas Gilbert
Since the intention of fsync and fdatasync seems to be to write dirty fs buffers to persistent storage (i.e. the "oxide") then the best time is not necessarily the objective. Given the IDE times that people have been reporting, it is very unlikely that any of those IDE disks were really doing 200

RE: scsi vs ide performance on fsync's

2001-03-05 Thread Chris Delaney
Hello, Michael Widenius wrote on Monday, March 05, 2001: > > I wonder from where the fdatasync() is comming; MySQL is not doing > those (if you are not running mysqld with --flush) The call is either a fsync or an fdatasync that is done by Berkley DB on the transaction log. Regards, Chris Dela

scsi vs ide performance on fsync's

2001-03-05 Thread Michael Widenius
Hi! > "Jeremy" == Jeremy Hansen <[EMAIL PROTECTED]> writes: Jeremy> We're doing some mysql benchmarking. For some reason it seems that ide Jeremy> drives are currently beating a scsi raid array and it seems to be related Jeremy> to fsync's. Bonnie stats show the scsi array to blow away id

Re: scsi vs ide performance on fsync's

2001-03-05 Thread Michael Widenius
Hi! > "Mike" == Mike Black <[EMAIL PROTECTED]> writes: Mike> Here's a strace -r on IDE: Mike> 0.001488 write(3, "\214\1\0\0Blah Blah Blah Blah Blah Bla"..., 56) = 56 Mike> 0.000516 fdatasync(0x3)= 0 Mike> 0.001530 write(3, "\215\1\0\0Blah Blah Blah Blah Blah Bla".

Re: In which Order Host Adapters are detected???

2001-03-05 Thread Douglas Gilbert
Klaus Naumann wrote: > > rakesh rakesh wrote: > > > Hi List, > > > > I wanted to know in which order different Host > > adapters in the system are detected by the SCSI. > > You can have a look in linux/drivers/scsi/hosts.c . > It's in there. Why do you need to know that anyway ? While this is

Re: stability problem with SCSI in linux 2.4.2

2001-03-05 Thread Linus Torvalds
On Mon, 5 Mar 2001, Dan Jones wrote: > > I would second that and Adaptec deserves some praise for this. Note that the new adaptec driver is already the default one in the current pre-series. Linus - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the

Re: stability problem with SCSI in linux 2.4.2

2001-03-05 Thread Dan Jones
Alan Cox wrote: > > > I think I've found a stability problem in the SCSI subsystem of actual > > kernel 2.4.2. > > The 2.4.2 adaptec driver has plenty of problems. Either use the -ac version > and/or get Justin Gibbs new driver > - I would second that and Adaptec deserves some praise for this.

Re: Loopbackdevice wierd in 2.4.2 kernel

2001-03-05 Thread Markus Kossmann
Nick Brok wrote: > > Hello, > > This might be a none SCSI problem, but I just discovered a nasty fault in > the 2.4.2 kernel. > When creating a loopback file on this way: > > #> dd if=/dev/zero of=test.img bs=1k count=1000 > > #> losetup /dev/loop0 test.img > > #> mkfs -t ext2 /dev/loop0 1000

Re: scsi vs ide performance on fsync's

2001-03-05 Thread Ishikawa
Karl Hammar wrote: > Strange -- my times stays about the same: > > (lk2.2.18 with sym-2.1.0-20001230 driver) Hm... There could be kenrel-related factors. My PC runs the kernel 2.4.2 The scsi code was patched with "scsi241_ey2.diff.g" posted on this mailing list by Doug Gilbert on Feb 8, 2001. (

Re: In which Order Host Adapters are detected???

2001-03-05 Thread Klaus Naumann
rakesh rakesh wrote: > Hi List, > > I wanted to know in which order different Host > adapters in the system are detected by the SCSI. You can have a look in linux/drivers/scsi/hosts.c . It's in there. Why do you need to know that anyway ? CU, Klaus -- Klaus Naumann Systems Adminis

In which Order Host Adapters are detected???

2001-03-05 Thread rakesh rakesh
Hi List, I wanted to know in which order different Host adapters in the system are detected by the SCSI. Thankx for ur help. __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ - To unsubscribe from t

Loopbackdevice wierd in 2.4.2 kernel

2001-03-05 Thread Nick Brok
Hello, This might be a none SCSI problem, but I just discovered a nasty fault in the 2.4.2 kernel. When creating a loopback file on this way: #> dd if=/dev/zero of=test.img bs=1k count=1000 #> losetup /dev/loop0 test.img #> mkfs -t ext2 /dev/loop0 1000 <- here it's hanging and this process got

Re: scsi vs ide performance on fsync's

2001-03-05 Thread Karl Hammar
Strange -- my times stays about the same: $ time ./xlog aa fsync real0m23.695s user0m0.020s sys 0m0.150s $ time ./xlog aa fsync real0m24.024s user0m0.030s sys 0m0.130s $ rm aa $ time ./xlog aa fsync real0m23.979s user0m0.020s sys 0