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-<!doctype linuxdoc system>
-
-<article>
-
-<title>RTACCT Utility
-<author>Robert Olsson
-<date>some_negative_number, 20 Dec 2001
-
-<p>
-Here is some code for monitoring the route cache. For systems handling high
-network load, servers, routers, firewalls etc the route cache and its garbage
-collection is crucial. Linux has a solid implementation.
-
-<p>
-The kernel patch (not required since linux-2.4.7) adds statistics counters
-from route cache process into 
-/proc/net/rt_cache_stat. A companion user mode program presents the statistics
-in a vmstat or iostat manner. The ratio between cache hits and misses gives 
-the flow length.
-
-<p>
-Hopefully it can help understanding performance and DoS and other related
-issues.
-
-<p> An URL where newer versions of this utility can be (probably) found
-is ftp://robur.slu.se/pub/Linux/net-development/rt_cache_stat/
-
-
-<p><bf/Description/
-
-<p>The format of the command is:
-
-<tscreen><verb>
-       rtstat [ OPTIONS ]
-</verb></tscreen>
-
-<p> <tt/OPTIONS/ are:
-
-<itemize>
-
-<item><tt/-h/, <tt/-help/ - show help page and version of the utility.
-
-<item><tt/-i INTERVAL/ - interval between snapshots, default value is
-2 seconds.
-
-<item><tt/-s NUMBER/ - whether to print header line. 0 inhibits header line,
-1 prescribes to print it once and 2 (this is default setting) forces header
-line each 20 lines. 
-
-</itemize>
-
-</article>