HA comparison comments

[Joe Lindsay]

No we were not comparing XFS to UFS, of course Linux rules! ;)


Doug Hughes wrote:
> 
> >I cannot speak for SGI's HA solutions, but we
> >have Origin 2000's with 4 CPU's and 512mb of memory
> >and Sun 4000's with 4 CPU's and 512mb of memory.
> >The Origins are an order of magnitude faster than
> >the Sun machines.  This is especially evident for
> >IO intensive applications (Disk IO).  I was the Sun
> >guy coming into an SGI shop and I have had to eat
> >my words...The Origins are very fast, too bad there
> >is little 3rd party support for Irix....Joe
> 
> Ah, but are you sure that this isn't a case of xfs  vs. old UFS?
> One can clearly see from lmbench (Usenix '96) benchmarks that xfs
> is much faster than sun's implementation of UFS, though linux ext2fs
> beats both handily.  I would like to see the results of the lmbench
> disk latency benchmark for the 4000, though.
> 
> Not saying that this isn't significant, but before we blame the I/O
> subsystem, let's make sure it's at fault and not the file system in use.
> 
> --
> ____________________________________________________________________________
> Doug Hughes                                     Engineering Network Services
> System/Net Admin                                Auburn University
>                         doug@eng.auburn.edu