Date: Tue, 19 Feb 2019 22:25:30 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 230260] [FUSE] [PERFORMANCE]: Performance issue (I/O block size) Message-ID: <bug-230260-3630-w824iEj8vY@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-230260-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-230260-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230260 Kenneth D. Merry <ken@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ken@FreeBSD.org --- Comment #9 from Kenneth D. Merry <ken@FreeBSD.org> --- This breaks LTFS (https://github.com/LinearTapeFileSystem/ltfs) at least. = For example: sm4u-12:/mnt:!:0} dd if=3D/dev/zero of=3Dfoo bs=3D1m count=3D1024 1024+0 records in 1024+0 records out 1073741824 bytes transferred in 5.713798 secs (187920873 bytes/sec) {sm4u-12:/mnt:!:0} ls -la total 1048578 drwxrwxrwx 2 root wheel 0 Feb 19 22:20 . drwxr-xr-x 30 root wheel 35 Jan 30 18:45 .. -rwxrwxrwx 1 root wheel 1073741824 Feb 19 22:20 foo {sm4u-12:/mnt:!:0} dd if=3Dfoo of=3D/dev/null bs=3D1m 0+1 records in 0+1 records out 65536 bytes transferred in 0.000146 secs (449912127 bytes/sec) {sm4u-12:/mnt:!:0} ls -la total 1048578 drwxrwxrwx 2 root wheel 0 Feb 19 22:20 . drwxr-xr-x 30 root wheel 35 Jan 30 18:45 .. -rwxrwxrwx 1 root wheel 1073741824 Feb 19 22:20 foo Reverting the change back to 4K makes reads work normally again. I wonder how many other filesystems were broken by this change? --=20 You are receiving this mail because: You are the assignee for the bug.=
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