[Bug 296466] copy_file_range can be very slow on zfs even for small files

[email protected] Sat, 11 Jul 2026 02:13:19 +0000
Newsgroups gmane.os.freebsd.devel.file-systems
Message-ID <[email protected]/bugzilla/>
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D296466

--- Comment #10 from Rick Macklem <[email protected]> ---
(In reply to Oleksandr Kryvulia from comment #1)
Are you running a newer system than 14.4?

I ask because once block cloning is enabled,
the copy should be handled with that.

# sysctl vfs.zfs.bclone_enabled
should show you if block cloning is enabled.

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