Re: [perf-discuss] File events notification mechansim

2006-05-05 Thread Prakash Sangappa
Spencer Shepler wrote: It appears that the distributed filesystem implementation should provide necessary means to collect such events. I think the responsibility falls squarely on the distributed file system implementation. I don't of if there are any distributed file system implementation

Re: [perf-discuss] File events notification mechansim

2006-05-05 Thread Spencer Shepler
On Fri, Prakash Sangappa wrote: > Darren Kenny wrote: > >Hi Prakash, > > > >I don't think it's the implementation that bridges between the kernel > >and the user spaces that's important to JDS, and probably most other > >people - it's the ultimate API that people will have to write to, and > >I

Re: [perf-discuss] File events notification mechansim

2006-05-05 Thread Prakash Sangappa
Darren Kenny wrote: Hi Prakash, I don't think it's the implementation that bridges between the kernel and the user spaces that's important to JDS, and probably most other people - it's the ultimate API that people will have to write to, and I think from this perspective that sysevents is not

[perf-discuss] Re: Re: maxphys and sd_max_xfer_size

2006-05-05 Thread Dave Fisk
Steven: >My objective is simple. Fabric attached high end storages like EMC have >stripe width around 8 Mbyte. Can we not match the SCSI transfer size to >be in or around the same size? I’m not sure what you mean. The most common EMC configuration is RAID-1 pairs, so there is no stripe width t

Re: [perf-discuss] File events notification mechansim

2006-05-05 Thread Darren Kenny
Hi Prakash, I don't think it's the implementation that bridges between the kernel and the user spaces that's important to JDS, and probably most other people - it's the ultimate API that people will have to write to, and I think from this perspective that sysevents is not what we want - it may