[Bug 212179] qlogic 24xx series read speed limit
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Fri Aug 26 12:59:24 UTC 2016
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212179
Bug ID: 212179
Summary: qlogic 24xx series read speed limit
Product: Base System
Version: 10.3-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: freebsd-bugs at FreeBSD.org
Reporter: mangelot at hotmail.com
Qlogic 2464 (my own quad port HBA) target read speed limited with kernel driver
isp(4)
Multiple people are complaining of a issue with qlogic 24xx series cards
that the read speed in target mode is limited (+/-200MB/s)
and write speed +/-390MB/s (which is okay).
Its reported in freenas versions (based on freebsd) but freenas isn't
supporting target mode officially.they tested it and confirmed the issue an
they told me it solved by setting link to point-to-point (which didn't help).
they also confirmed that te issue isn't with 25xx cards...
https://bugs.freenas.org/attachments/6577/screenshot2.png
https://bugs.freenas.org/attachments/6576/screenshot.png
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