Adding upstream version 1:7.0.3.upstream/1%7.0.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/doc/userguide/performance/tcmalloc.rst b/doc/userguide/performance/tcmalloc.rst
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+Tcmalloc
+========
+
+'tcmalloc' is a library Google created as part of the google-perftools
+suite for improving memory handling in a threaded program. It's very
+simple to use and does work fine with Suricata. It leads to minor
+speed ups and also reduces memory usage quite a bit.
+
+Installation
+~~~~~~~~~~~~
+
+On Ubuntu, install the libtcmalloc-minimal4 package:
+
+::
+
+  apt-get install libtcmalloc-minimal4
+
+On Fedora, install the gperftools-libs package:
+
+::
+
+  yum install gperftools-libs
+
+Usage
+~~~~~
+
+Use the tcmalloc by preloading it:
+
+Ubuntu:
+
+::
+
+  LD_PRELOAD="/usr/lib/x86_64-linux-gnu/libtcmalloc_minimal.so.4" suricata -c suricata.yaml -i eth0
+
+Fedora:
+
+::
+
+  LD_PRELOAD="/usr/lib64/libtcmalloc_minimal.so.4" suricata -c suricata.yaml -i eth0