Hans Reiser wrote: > Instead of using sync, could you increase the size of the files you > write so that they are 10x ram size? > > I have a suspicion we are slow at sync.... I am not sure why, but I > have seen other data where sync was slow for us, and maybe we need to > optimize that code path.
My impression is rather that the bottleneck is the amount of seeking the sync causes - would it be possible to reorder the write operations somehow, still preserving atomicity? Also, a comparison of Reiser4 performance on NCQ vs. non-NCQ drive could be interesting (I don't have NCQ, maybe that's the problem). Regards, -- Jindrich Makovicka
