Hey Dave, ----- Original Message ----- > ... > Must be an old version of RHEL6, because 6.4 doesn't do any IO at > all, same as upstream. This test workload is purely a metadata only > workload (no data is written) and so it all gets gathered up by > delayed logging. *nod* - RHEL6.3. > > I think it is still possible, FWIW. One could use python ctypes (as in > > Marks test program) and achieve a page-aligned POSIX memalign, > > I wasn't aware you could get memalign() through python at all. I > went looking for this exact solution a couple of month ago when > these problems started to be reported and couldn't find anything > ... Yes, on reflection it doesn't jive too well with the way python wants to do reads, in particular - os.read takes a file and a size, there's no buffer exposed at the API level (for input). It would need to be a separate python module to the core set I guess (with a C component), and a slightly different API - or at least some additional APIs which can take in an aligned buffer, rather than just allocating one each time - but I believe it's still feasible. cheers. -- Nathan _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
