Re: REGRESSION f54b311142a92ea2e42598e347b84e1655caf8e3 tcp auto corking slows down iSCSI file system creation by factor of 70 [WAS: 4 TB VMFS creation takes 15 minutes vs 26 seconds]
From: Thomas Glanzmann <hidden>
Date: 2014-02-08 16:57:36
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- 2014-02-08 · REGRESSION f54b311142a92ea2e42598e347b84e1655caf8e3 tcp auto corking slows down iSCSI file system creation by factor of 70 [WAS: 4 TB VMFS creation takes 15 minutes vs 26 seconds] · Thomas Glanzmann <hidden>
- 2014-02-08 · REGRESSION f54b311142a92ea2e42598e347b84e1655caf8e3 tcp auto corking slows down iSCSI file system creation by factor of 70 [WAS: 4 TB VMFS creation takes 15 minutes vs 26 seconds] · Thomas Glanzmann <hidden>
Hello Eric,
Note : We did some patches in the MSG_MORE logic for sendpage(), but in your case I do not think its related (git grep -n MSG_SENDPAGE_NOTLAST ) if you are curious
thank you for the pointer. The iSCSI target code actually uses sendpage
whenever it can.
Cheers,
Thomas