On Fri, Oct 10, 2014 at 08:29:57PM +0800, Cunming Liang wrote:
> v2 update:
> Rebase code to the latest master branch.
>
> --------------
>
> Tested-by: Zhaochen Zhan <zhaochen.zhan at intel.com>
> This patch has been verified on ixgbe and it is ready to be integrated to
> dpdk.org.
> For e1000 and i40e, lacking loopback supporting, this patch can't support
> them for now.
>
> It provides unit test to measure cycles/packet in NIC loopback mode.
> It simply gives the average cycles of IO used per packet without test
> equipment.
> When doing the test, make sure the link is UP.
>
> There's two stream control mode support, one is continues, another is burst.
> The former continues to forward the injected packets until reaching a certain
> amount of number.
> The latter one stop when all the injected packets are received.
> In burst stream, now measure two situations, with or without desc. cache
> conflict.
> By default, it runs in continues stream mode to measure the whole rxtx.
>
> Usage Example:
> 1. Run unit test app in interactive mode
> app/test -c f -n 4 -- -i
> 2. Set stream control mode, by default is continuous
> set_rxtx_sc [continuous|poll_before_xmit|poll_after_xmit]
> 3. If choose continuous stream, there are another two options can configure
> 3.1 choose rx/tx pair, default is vector
> set_rxtx_mode [vector|scalar|full|hybrid]
> Note: To get acurate scalar fast, plz choose 'vector' or 'hybrid'
> without INC_VEC=y in config
> 3.2 choose the area of masurement, default is rxtx
> set_rxtx_anchor [rxtx|rxonly|txonly]
> 4. Run and wait for the result
> pmd_perf_autotest
>
> For who simply just want to see how much cycles cost per packet.
> Compile DPDK, Run 'app/test', and type 'pmd_perf_autotest', that's it.
> Nothing else needs to configure.
> Using other options when you understand and what to measures more.
>
> *** BLURB HERE ***
>
> Cunming Liang (4):
> app/test: unit test for rx and tx cycles/packet
> app/test: measure standalone rx or tx cycles/packet
> app/test: add unit test to measure RX burst cycles
> app/test: allow to create packets in different sizes
>
> app/test/Makefile | 1 +
> app/test/commands.c | 111 +++++
> app/test/packet_burst_generator.c | 26 +-
> app/test/packet_burst_generator.h | 11 +-
> app/test/test.h | 6 +
> app/test/test_link_bonding.c | 39 +-
> app/test/test_pmd_perf.c | 922
> +++++++++++++++++++++++++++++++++++
> lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 6 +
> 8 files changed, 1089 insertions(+), 33 deletions(-)
> create mode 100644 app/test/test_pmd_perf.c
>
> --
> 1.7.4.1
>
>
Given that a subsequent patch was submitted to bring the debug and non-debug
versions of rte_eth_rx_burst behavior in line
Acked-by: Neil Horman <nhorman at tuxdriver.com>
