On 2023/4/12 17:52, Bruce Richardson wrote: > On Wed, Apr 12, 2023 at 02:48:08AM +0000, Chengwen Feng wrote: >> Add tracepoints at important APIs for tracing support. >> >> Signed-off-by: Chengwen Feng <fengcheng...@huawei.com> >> --- >> lib/dmadev/meson.build | 2 +- >> lib/dmadev/rte_dmadev.c | 39 ++++++-- >> lib/dmadev/rte_dmadev.h | 56 ++++++++--- >> lib/dmadev/rte_dmadev_trace.h | 133 +++++++++++++++++++++++++++ >> lib/dmadev/rte_dmadev_trace_fp.h | 113 +++++++++++++++++++++++ >> lib/dmadev/rte_dmadev_trace_points.c | 59 ++++++++++++ >> lib/dmadev/version.map | 10 ++ >> 7 files changed, 391 insertions(+), 21 deletions(-) >> create mode 100644 lib/dmadev/rte_dmadev_trace.h >> create mode 100644 lib/dmadev/rte_dmadev_trace_fp.h >> create mode 100644 lib/dmadev/rte_dmadev_trace_points.c >> > For completeness, do you have any numbers for the performance impact (if > any) to the DMA dataplane APIs with this tracing added?
No, because: The dataplane trace points was disable default (unless the RTE_ENABLE_TRACE_FP is set), so there will no trace-points code default. So I think it will not impact performance default. > > /Bruce > > . >
