Differences

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--- documentation:technical_docs:performance [2019/03/26 00:22] – external edit 127.0.0.1
+++ documentation:technical_docs:performance [2019/07/09 18:04] – [Where is the bottleneck ?] olivier
@@ Line 746: / Line 746: @@
 </code>
-On this case the bootleneck is just the network stack.
+On this case the bootleneck is just the network stack (most of the time spend into function ip_findroute called by ip_tryforward).
 == CPU cycles spent ==
@@ Line 761: / Line 761: @@
 <code>
 pmcstat -z 50 -S cpu_clk_unhalted.thread -l 20 -O /data/pmc.out
-</code>
+pmcstat -R /data/pmc.out -z50 -G /data/pmc.stacks
+less /data/pmc.stacks
-Then analyses the output with:
-<code>
-fetch http://BSDRP-release-debug
-tar xzfv BSDRP-release-debug.tar.xz
-pmcannotate /data/pmc.out /data/debug/boot/kernel/kernel.symbols
 </code>