Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-05 Thread Igor Mozolevsky
/usr/src : zfs with compression enabled /usr/src : 386.3MB/s >>> Do I understand it well? It seems that zfs with compression enabled on >>> /usr/src with 8KB block size and 16 threads performs 386.3MB/s which >>> is about 6 times better than debian5? I am thinking about this image >>> ht

Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-04 Thread Igor Mozolevsky
On 5 June 2010 00:58, Adam PAPAI wrote: > How can I tune my disk to make it faster? Is it possible? What is the > reason of the really slow I/O with more than 4 threads? What do you > recommend me to do? Why is it damn slow with 8K blocksize? Does linux still have async disk writes by default?

busdma/ata & sysinstall [Was: Re: 6.0-RELEASE/AMD64 Ram Capacity?]

2006-03-13 Thread Igor Mozolevsky
I've spent a considerable amount of time looking through ata/busdma drivers, they need a lot of tidying up, lack of comments doesn't help either... i'd like to grab the handle on busdma & ata projects, with the aim of having them in production state for 6.5-STABLE. I was also looking at sy