On 5/26/26 6:42 AM, Theodore Tso wrote:
It seems... surprising that the additional I/O operations are actually throttloing UFS device bandwidth by 2x (4GB/s vs 2GB/s). Have you dug into why this is happening, and whether there is anything that can be optimized below the file system?
The layers below the filesystem (block, SCSI, UFS) is what I'm responsible for in the Pixel team and I can assure you that these are highly optimized.
Since the transfer size used in Jaegeuk's tests is much larger than 4 KiB, how many CPU cycles are used per IO by the layers below the filesystem is not limiting the transfer bandwidth. Bart. _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
