Here also has another question. How to save the file temperature among the umount to be able to preserve the file tempreture after reboot? This above is the requirement from DB product. I thought that we can save file temperature in its inode struct, that is, add one new field in struct inode, then this info will be written to disk with inode. Any comments or ideas are appreciated, thanks. On Fri, Nov 2, 2012 at 12:04 PM, Zhi Yong Wu <zwu.kernel@xxxxxxxxx> wrote: > HI, guys > > VFS hot tracking currently show result as below, and it is very > strange and not nice. > > inode #279, reads 0, writes 1, avg read time 18446744073709551615, > avg write time 5251566408153596, temp 109 > > Do anyone know if there is one simpler but effective way to calculate > data temperature? > > -- > Regards, > > Zhi Yong Wu -- Regards, Zhi Yong Wu -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html