RFR(L) 8237354: Add option to jcmd to write a gzipped heap dump

[serguei.spitsyn at oracle.com]

Hi Ralf,

I'd suggest for the option format something like this:
   -gz[=level]

where level is an int. The part [=level] is optional.
The level is 0 by default (if it is not set).

Thanks,
Serguei

On 2/11/20 7:35 AM, Schmelter, Ralf wrote:
> Hi Yasumasa,
>
> I think I've tried too much by using the -gz flag as a boolean plus a int value. I've decided to use two options instead: -gz as a boolean option to turn compression on and -gz-level to specify the compression level. E.g.
> GC.heap_dump -gz -gz-level=3 test.hprof.gz
>
> Best regards,
> Ralf