On 12/8/2013 12:32 PM, Rolf Fokkens wrote: > On 11/06/2013 11:08 PM, Larkin Lowrey wrote: >> When I boot my cache usage returns to 1.3GB even when it was nearly full >> at shutdown (as reported by bcache-status). Are the read cache contents >> not retained across a reboot? > Same here: After running for a while bcache-status reports a Total > Cache Used of 2.1GB. After reboot it's back to 910MB all the time. Did > you get an explanation for this?
I never got an explanation but I have a theory. My cache has started booting with much more total cache used reported. My theory is that garbage collection is occurring on boot and that my pre-shutdown numbers contain a lot of dirty pages. I plan to verify this, when I get a chance, by forcing a garbage collection before shutdown and comparing the post GC numbers to the post boot numbers. --Larkin -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
