Date: Mon, 13 May 2019 11:51:39 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 237807] ZFS: ZVOL writes fast, ZVOL reads abysmal... Message-ID: <bug-237807-3630-N4SBQ4kIOj@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-237807-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-237807-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D237807 --- Comment #5 from Nils Beyer <nbe@renzel.net> --- (In reply to crest from comment #4) with "primarycache=3Dmetadata" and "secondarycache=3Dnone" much much better= ... Factor ten; get around 200MB/s now (no joke) with one single "dd". With two "dd" instances, I get around 400MB/s. What is the logic behind that "primarycache=3Dmetadata" is actually more performant than "primarycache=3Dall"? --=20 You are receiving this mail because: You are the assignee for the bug.=
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