This script simplifies execution of bpftrace scripts
for SPDK application analysis. The script should be
invoked as:
scripts/bpftrace.sh `pidof spdk_tgt` script.bt
where 'script.bt' is the name of the bpftrace script
you wish to execute.
The script helps simplify the following:
1) replace __EXE__ markers in the bpftrace script with
the full path of the spdk executable (required for
usdt probes); it uses /proc/<pid>/exe to get the
full path
2) replace __PID__ markers in the bpftrace script with
the PID of the spdk process under analysis - this
allows for doing things like filtering system call
counts for just the SPDK process
3) invoke bpftrace with the -p <pid> option
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ib271f26efe4ba326d951a7b30f61b22be755dda7
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7710
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
