Re: AW: WG: Re: read performance much slower than write
"Peter T. Breuer" <[email protected]>
| Newsgroups | gmane.linux.enbd.general |
|---|---|
| Message-ID | <[email protected]> |
"Also sprach Peter T. Breuer:" > Yes - it shows something along the lines of what I imagined - the > interposition of raid at the client side over enbd is causing the kernel > to pass many small requests to enbd, which is bad for transfer over Ge. Can you show me the nbdinfo output for the dd read test a) without raid5 overlying the enbd devices (three? four?) b) with raid5 overlying them on the client side. ifconfig info might also be relevant. The line about packets and amount transferred. I probably should add some "average queue" stats to nbdinfo. Peter