[tor-bugs] #34010 [Core Tor/Tor]: Use io_uring when available

Tor Bug Tracker & Wiki blackhole at torproject.org
Sun Apr 26 21:20:20 UTC 2020


#34010: Use io_uring when available
--------------------------+------------------------
 Reporter:  torry         |          Owner:  (none)
     Type:  enhancement   |         Status:  new
 Priority:  Medium        |      Milestone:
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:  io_uring      |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------

Comment (by torry):

 Reading the comments from the linked lwn thread:

 ''you can make use of IORING_OP_POLL_ADD to poll all 1,000 network
 connections via the uring, and then use IORING_OP_READV to read only from
 the connections that are ready, using a smaller number of buffers than
 there are connections.

 That's basically the same work level as epoll + read, but with both the
 epoll and the read being done asynchronously.''

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/34010#comment:1>
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