Issue 11
© Solarflare Communications 2014
342
Solarflare Server Adapter
User Guide
9.10 Performance
The following section is an overview of benchmark tests results measured by Solarflare to provide
an indication of expected performance with current drivers.
Performance tests were conducted on Mac OS X 10.7.2 on a pair of Mac Pro servers configured back-
to-back. The Mac OS X network stack was tuned for 10G operation as described in
Reference System Specification
• MacPro5,1, 3GB memory (all channels populated)
• Processor: Single Quad-Core Intel Xeon @ 2.8 GHz L2 Cache (per core): 256 KB, L3 Cache: 8 MB
Throughput (Netperf TCP_STREAM)
Results using Netperf IPv4 TCP_STREAM at 1500 MTU:
Latency (Netperf TCP_RR)
Latency measured using Netperf IPv4 TCP_RR will depend on the interrupt moderation settings and
the type of SFN5xxx adaptor used (10GBaseT cards have higher latency). Latency as measured on
SFN5122F at the standard 1500 MTU is as follows:
• Interrupt moderation at 40
μ
s :
45.7
μ
s
RTT/2
• Interrupt moderation disabled:
18.2
μ
s
RTT/2
File System Benchmarks (AJA System Test)
The AJA System Test benchmark provides some indication of likely network file system performance
for video applications.
-V --version
Display version information and exit.
Table 91: Throughput Results
Message size
No. of streams
Bandwidth
64Kbyte
1
9.26 Gb/s
64Kbyte
1 bidirectional
17.8 Gb/s
Table 90: Sfupdate Options
Option
Description