On 4/27/25 17:30, nl6720 wrote: > On Sunday, 27 April 2025 11:45:59 EEST Chao Yu wrote: >> On 4/25/25 09:36, nl6720 via Linux-f2fs-devel wrote: >>> Some drives operate in "512e" configuration with their logical block >>> size set to 512 bytes for legacy compatibility reasons while providing >>> a more optimal 4096 byte value as the physical block size. >>> >>> Since the physical block size is the smallest unit a physical storage >>> device can write atomically, prefer it over the logical block size. >>> >>> Closes: https://github.com/jaegeuk/f2fs-tools/issues/29 >> >> f2fs uses PAGE_SIZE as block size, commonly it's 4096 rather than 512? > > The thing mkfs.f2fs calls "sector size" in its output is 512 on 512e drives > instead of 4096.
How about printing block size of f2fs as below: output of mkfs.f2fs: Info: sector size = 512 Info: total sectors = 16777216 (8192 MB) Info: block size = 4096 Thanks, > E.g.: > > F2FS-tools: mkfs.f2fs Ver: 1.16.0 (2023-04-11) > > Info: Disable heap-based policy > Info: Debug level = 0 > Info: Trim is enabled > Info: [/dev/disk/by-partlabel/512e] Disk Model: QEMU HARDDISK > Info: Segments per section = 1 > Info: Sections per zone = 1 > Info: sector size = 512 > Info: total sectors = 124997632 (61034 MB) > Info: zone aligned segment0 blkaddr: 512 > Info: format version with > "Linux version 6.13.8-arch1-1 (linux@archlinux) (gcc (GCC) 14.2.1 20250207, > GNU ld (GNU Binutils) 2.44) #1 SMP PREEMPT_DYNAMIC Sun, 23 Mar 2025 17:17:30 > +0000" > Info: [/dev/disk/by-partlabel/512e] Discarding device > Info: This device doesn't support BLKSECDISCARD > Info: Discarded 61034 MB > Info: Overprovision ratio = 0.590% > Info: Overprovision segments = 179 (GC reserved = 176) > Info: format successful > > > nl6720 > > _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
