Changes between Version 16 and Version 17 of SupportedTraceFormats

Timestamp:

08/02/13 17:43:38 (8 years ago)

Author:

rjs51

Comment:

--

SupportedTraceFormats

@@ -7 +7 @@
 || Native Linux interface || int:<interface> || Yes || Yes || Only available on Linux ||
 || Native Linux interface (ring buffers) || ring:<interface> || Yes || Yes || Only available on Linux -- requires Libtrace 3.0.16 or later ||
+|| Intel Data Plane Development Kit (DPDK) || dpdk:<PCI address> || Yes || Yes || Only available on Linux -- experimental (requires additional setup) ||
 || Native BSD interface || bpf:<interface> || Yes || No || Only available on BSD or Mac OS X ||
 || TSH trace file || tsh:<filename> || Yes || No || ||
@@ -51 +52 @@
  * Supports all the same features as int:
 
+=== Intel Data Plane Development Kit (dpdk:) - This format is currently experimental ===
+ * Better performance than int: and ring: under the correct conditions.
+ * Binds to a single CPU core and polls on a buffer, this means waiting for a packet uses 100% CPU on that bound core.
+ * You can only use a single instance of the dpdk: format at a given time - that is you can listen to a single interface or write to a single interface but not both.
+
 === RT protocol ===
  * libtrace does not (yet?) support RT output.