[prefetch commit] r375 - wiki

[codesite...@google.com]

Author: krzysztof.lichota
Date: Mon May 12 14:25:09 2008
New Revision: 375

Added:
wiki/ComparisonToReadahead.wiki

Log:
Created wiki page through web user interface.

Added: wiki/ComparisonToReadahead.wiki
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+++ wiki/ComparisonToReadahead.wiki Mon May 12 14:25:09 2008
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+#summary Comparison of prefetching to Ubuntu readahead
+#labels documentation,todo
+
+This page is work in progress.
+
+ * Readahead works by tracing which files are used, but it works on
whole files. Prefetch has greater resolution as it works on pages.
+ * Readahead cannot do prefetching and profiling at the same time,
separate boot with profiling must be done.
+ * Readahead profiling is expensive (uses inotify).
+ * Readahead needs manual intervention from user to change readahead
list, prefetch adapts itself automatically.