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| -rw-r--r-- | docs/requirements/vswitchperf_ltd.rst | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/docs/requirements/vswitchperf_ltd.rst b/docs/requirements/vswitchperf_ltd.rst index 87559766..72a93cb4 100644 --- a/docs/requirements/vswitchperf_ltd.rst +++ b/docs/requirements/vswitchperf_ltd.rst @@ -959,7 +959,15 @@ largest frames of 9K bytes. Types of tests are: 1. Throughput test defines the maximum number of frames per second - that can be transmitted without any error. + that can be transmitted without any error, or 0% loss ratio. + In some Throughput tests (and those tests with long duration), + evaluation of an additional frame loss ratio is suggested. The + current ratio (10^-7 %) is based on understanding the typical + user-to-user packet loss ratio needed for good application + performance and recognizing that a single transfer through a + vswitch must contribute a tiny fraction of user-to-user loss. + Further, the ratio 10^-7 % also recognizes practical limitations + when measuring loss ratio. 2. Latency test measures the time required for a frame to travel from the originating device through the network to the destination device. |