Github user chenghao-intel commented on the issue:
https://github.com/apache/spark/pull/15579
@srowen
Besides `numactl`, some profiling tools like the `valgrind`, `strace`,
`vtune`, and also the system call hackings we probably needed before the
executor process launched.
I'll agree this probably not that secure to provide the prefixed command
via configuration, but an earlier code review if community will accept that;
@rxin And a follow up commits with unit tests, standardalone and mesos mode
support will be added
soon.
@sheepduke please update the PR description, title first.
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