From a8f7d7cf0af123432daa8a078a7f868e3694ba1c Mon Sep 17 00:00:00 2001 From: Krzysztof Karas Date: Wed, 22 Feb 2023 13:22:55 +0100 Subject: [PATCH] trace: update description of tracepoint number Make it clear that number of entries might not be equal to the number of recorded traces, as some of the latter might occupy two entries due to their length. Change-Id: I3099cfb719c38bdee48fbe20fccef3ef43e820a3 Signed-off-by: Krzysztof Karas Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16916 Reviewed-by: Tomasz Zawadzki Tested-by: SPDK CI Jenkins Reviewed-by: Shuhei Matsumoto --- lib/event/app.c | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/event/app.c b/lib/event/app.c index 160c2cadb..f252999e4 100644 --- a/lib/event/app.c +++ b/lib/event/app.c @@ -890,6 +890,7 @@ usage(void (*app_usage)(void)) printf(" --base-virtaddr the base virtual address for DPDK (default: 0x200000000000)\n"); printf(" --num-trace-entries number of trace entries for each core, must be power of 2, setting 0 to disable trace (default %d)\n", SPDK_APP_DEFAULT_NUM_TRACE_ENTRIES); + printf(" Tracepoints vary in size and can use more than one trace entry.\n"); printf(" --rpcs-allowed comma-separated list of permitted RPCS\n"); printf(" --env-context Opaque context for use of the env implementation\n"); printf(" --vfio-vf-token VF token (UUID) shared between SR-IOV PF and VFs for vfio_pci driver\n");