FT> It's against on the top of the following patches: Would you mind sending a patch against a vanilla tree? I'm having a hard time getting the patches (old and new) to apply cleanly and in the right order. FT> In my experiments, the ring buffer interface provides 10% better FT> write performance with disktest benchmark, though dbench gives FT> comparable performances (about 340 MB/s). This is good to hear. I am interested in testing it in some of my real-life situations where performance is slower due to the high latency. This mostly affects the boot time of Xen guests. I have added kernel caching back into my local version (which only adds 200 lines). It improves Xen guest boot performance significantly, but does not affect dbench performance. I will be interested to see what kind of performance I can get from your ringbuffer version, as well as possibly a combination of the two. Thanks! -- Dan Smith IBM Linux Technology Center Open Hypervisor Team email: danms@xxxxxxxxxx
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