diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2016-01-13 21:29:48 +0100 |
|---|---|---|
| committer | Jon Mason <jdmason@kudzu.us> | 2016-01-18 04:08:05 +0100 |
| commit | 8a7b6a778a8519a879c7b6764a11c0d39eead95f (patch) | |
| tree | 00470c865997dda2394da0c8157a660a4b4d2f18 /drivers/ntb/test/Kconfig | |
| parent | NTB: Address out of DMA descriptor issue with NTB (diff) | |
| download | linux-8a7b6a778a8519a879c7b6764a11c0d39eead95f.tar.xz linux-8a7b6a778a8519a879c7b6764a11c0d39eead95f.zip | |
ntb: ntb perf tool
Providing raw performance data via a tool that directly access data from
NTB w/o any software overhead. This allows measurement of the hardware
performance limit. In revision one we are only doing single direction
CPU and DMA writes. Eventually we will provide bi-directional writes.
The measurement using DMA engine for NTB performance measure does
not measure the raw performance of DMA engine over NTB due to software
overhead. But it should provide the peak performance through the Linux DMA
driver.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Tested-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/ntb/test/Kconfig')
| -rw-r--r-- | drivers/ntb/test/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/ntb/test/Kconfig b/drivers/ntb/test/Kconfig index 01852f98a843..a5d0eda44438 100644 --- a/drivers/ntb/test/Kconfig +++ b/drivers/ntb/test/Kconfig @@ -17,3 +17,11 @@ config NTB_TOOL functioning at a basic level. If unsure, say N. + +config NTB_PERF + tristate "NTB RAW Perf Measuring Tool" + help + This is a tool to measure raw NTB performance by transferring data + to and from the window without additional software interaction. + + If unsure, say N. |