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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2013-03-17 14:20:19 +0100
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2013-03-17 14:20:19 +0100
commit5672d307c7d2cd6bbc55bd8ffd3ad31954488e26 (patch)
tree480a3a6ddae28555beda62e5fbde0ff253b3e7ff /faq
parent37af1117a703d9b8ed3056bf24319988b640aea5 (diff)
Add a faq about slowness
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+[[!meta copyright="Copyright © 2013 Free Software Foundation, Inc."]]
+
+[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
+is included in the section entitled [[GNU Free Documentation
+License|/fdl]]."]]"""]]
+
+[[!meta title="Is the Hurd slow?"]]
+
+The Hurd is currently slower than Linux, yes.
+
+The main reason is *not* because of the overhead of RPCs. It's simply because
+less care has been done on implementing what makes Linux fast: intelligent
+read-ahead, carefully-tuned page cache, etc.
+
+There is no ground reason this can not be achieved on GNU/Hurd, it has just not
+been a priority until now (first make it work, then make it work fast). We are
+currently working on multi-page pager and read-ahead, which should improve this
+a lot.