I'm trying to use blktrace to capture IOs sent to the drive so I can model a physical device. In the end, I'd like to have a file with each physical IO on a line, containing the issue time (D), complete time (C), read/write flag, start block, and block count. I could almost get this from btt with the --per-io-dump option (with some post-processing), but it doesn't seem to specify whether the IO is a read or a write. I tried --dump-blocknos since it separates reads and writes, and I could theoretically use that to augment the data from the per IO dump, but it seems to duplicate events sometimes. What's the best way to do this? -- To unsubscribe from this list: send the line "unsubscribe linux-btrace" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
