On Fri, 18 Mar 2016, Eric Wheeler wrote: > On Thu, 17 Mar 2016, Kent Overstreet wrote: > > since the announcement. I'm gonna have to write some more documentation and do > > another announcement soon. > > > > One thing to note if you're running benchmarks is that data checksumming is on > > by default - it doesn't hurt most stuff noticably, but small random reads where > > your read size is smaller than the checksum granularity (typically the size of > > the writes you issued) will suck because it'll have to bounce and read the > > entire chunk of data the checksum covered. > > > > Benchmark wise, here's a dio append benchmark I ran the other day: > > > > Summary: > > bcachefs: 1749.1 MB/s > > ext4: 513.6 MB/s > > xfs: 515.7 MB/s > > btrfs: 531.2 MB/s > > Wow, that is incredible. For an upper limit on the extX filesystem line, > would you run a benchmark on your hardware for ext2 or ext4 without > journal? Hey Kent, Have you had a chance to see how much faster bcache is compared to ext2 or ext4-no-journal on your hardware? I'm curious about performance without journaling. -Eric -- Eric Wheeler -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
