Hello! 2018-05-16 12:57 GMT+02:00 Massimo B. <massimo.b@xxxxxxx>: > On Wed, 2018-05-16 at 12:38 +0200, Kai Krakow wrote: > >> Actually I'm using 2M bucket sizes so there's another round of >> taking care during the next update. > > Looking at /sys/fs/bcache/*/bucket_size I have a bucket_size of 512.0k and I > don't remember setting something non-standard here. > At the time I asked at #bcache about those settings I was told to start with the > defaults. Now that you say this, I may be using 512k, too. I remember I switched between both settings a few times. I have to check that later when I'm back at the PC. It makes sense, that I chose 512k because Samsung TLC probably uses 1.5M allocation blocks, and 512k is the only way to fit that (at the cost of more management overhead to the firmware but at least it aligns nicely). Without ever having done benchmarks around this, my system seems to run smoother with 512k vs 2M in the long run if I remember correctly. Regards, Kai -- 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
