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authorNick Mathewson <nickm@torproject.org>2017-11-17 09:26:11 -0500
committerNick Mathewson <nickm@torproject.org>2017-11-17 09:26:11 -0500
commit94dce246ee97884a546113827404a45d0f16c648 (patch)
tree4a920ae459af2725959bb075cb2f55744db91b9c /doc
parentcfacd4424009a78b6a737cd17fdf2fec60b77374 (diff)
parentb98614f1af6ed10aa0e3cd00d5baf57fb534f574 (diff)
downloadtor-94dce246ee97884a546113827404a45d0f16c648.tar.gz
tor-94dce246ee97884a546113827404a45d0f16c648.zip
Merge branch 'maint-0.3.2'
Diffstat (limited to 'doc')
-rw-r--r--doc/tor.1.txt34
1 files changed, 21 insertions, 13 deletions
diff --git a/doc/tor.1.txt b/doc/tor.1.txt
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@@ -791,27 +791,35 @@ GENERAL OPTIONS
restarting Tor. (Default: 0)
[[Schedulers]] **Schedulers** **KIST**|**KISTLite**|**Vanilla**::
- Specify the scheduler type that tor should use to handle outbound data on
- channels. This is an ordered list by priority which means that the first
- value will be tried first and if unavailable, the second one is tried and
- so on. It is possible to change thse values at runtime.
+ Specify the scheduler type that tor should use. The scheduler is
+ responsible for moving data around within a Tor process. This is an ordered
+ list by priority which means that the first value will be tried first and if
+ unavailable, the second one is tried and so on. It is possible to change
+ these values at runtime. This option mostly effects relays, and most
+ operators should leave it set to its default value.
(Default: KIST,KISTLite,Vanilla)
+
The possible scheduler types are:
+
- **KIST**: Kernel Informed Socket Transport. Tor will use the kernel tcp
- information stack per-socket to make an informed decision on if it should
- send or not the data. (Only available on Linux)
+ **KIST**: Kernel-Informed Socket Transport. Tor will use TCP information
+ from the kernel to make informed decisions regarding how much data to send
+ and when to send it. KIST also handles traffic in batches (see
+ KISTSchedRunInterval) in order to improve traffic prioritization decisions.
+ As implemented, KIST will only work on Linux kernel version 2.6.39 or
+ higher.
+
- **KISTLite**: Same as KIST but without kernel support which means that tor
- will use all the same mecanics as KIST but without the TCP information the
- kernel can provide.
+ **KISTLite**: Same as KIST but without kernel support. Tor will use all
+ the same mechanics as with KIST, including the batching, but its decisions
+ regarding how much data to send will not be as good. KISTLite will work on
+ all kernels and operating systems, and the majority of the benefits of KIST
+ are still realized with KISTLite.
+
- **Vanilla**: The scheduler that tor has always used that is do as much as
- possible or AMAP.
+ **Vanilla**: The scheduler that Tor used before KIST was implemented. It
+ sends as much data as possible, as soon as possible. Vanilla will work on
+ all kernels and operating systems.
[[KISTSchedRunInterval]] **KISTSchedRunInterval** __NUM__ **msec**::
- If KIST or KISTLite is used in Schedulers option, this control at which
+ If KIST or KISTLite is used in the Schedulers option, this controls at which
interval the scheduler tick is. If the value is 0 msec, the value is taken
from the consensus if possible else it will fallback to the default 10
msec. Maximum possible value is 100 msec. (Default: 0 msec)