[GitHub] [trafficserver] cmcfarlen commented on a diff in pull request #9228: Hugepage support for iobuffer

[GitBox <gi...@apache.org>]

cmcfarlen commented on code in PR #9228:
URL: https://github.com/apache/trafficserver/pull/9228#discussion_r1043489274


##########
doc/admin-guide/files/records.config.en.rst:
##########
@@ -4903,6 +4903,28 @@ Sockets
    platforms.  (Currently only Linux).  IO buffers are allocated with the MADV_DONTDUMP
    with madvise() on Linux platforms that support MADV_DONTDUMP.  Enabled by default.
 
+.. ts:cv:: CONFIG proxy.config.allocator.iobuf_chunk_sizes STRING
+
+   This configures the chunk sizes of each of the IO buffer allocators.  The chunk size is the number
+   of buffers allocated in a batch when the allocator's freelist is exhausted.  This must be specified as a
+   space separated list of up to 15 numbers.  If not specified or if any value specified is 0, the default
+   value will be used.
+
+   The list of numbers will specify the chunk sizes in the following order:
+
+   ``128 256 512 1k 2k 4k 8k 16k 32k 64k 128k 256k 512k 1M 2M``
+
+   The defaults for each allocator is:
+
+   ``128 128 128 128 128 128 32 32 32 32 32 32 32 32 32``

Review Comment:
   I'm not thrilled with this way of tuning this either.  Open to suggestions.



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