RFR [XS]: 8244196: adjust output in os_linux

[Baesken, Matthias]

Hi David ,  the newlines were removed by me because when looking at the hs_err files it seemed to me, that we have too much of them.
( but of course this might be a matter of taste , and not so much of correctness )

The output part looks like (from one of our Linux x86_64 machines)  this now :

/sys/kernel/mm/transparent_hugepage/enabled:[always] madvise never
/sys/kernel/mm/transparent_hugepage/defrag (defrag/compaction efforts parameter):[always] madvise never

/proc/sys/kernel/threads-max (system-wide limit on the number of threads):1032335
/proc/sys/vm/max_map_count (maximum number of memory map areas a process may have):2147483647
/proc/sys/kernel/pid_max (system-wide limit on number of process identifiers):81920

Best regards, Matthias

-----Original Message-----
From: David Holmes <david.holmes at oracle.com> 
Sent: Freitag, 1. Mai 2020 01:31
To: Baesken, Matthias <matthias.baesken at sap.com>; 'hotspot-dev at openjdk.java.net' <hotspot-dev at openjdk.java.net>
Subject: Re: RFR [XS]: 8244196: adjust output in os_linux

Hi Matthias,

On 1/05/2020 1:46 am, Baesken, Matthias wrote:
> Hello, please review this small change to os_linux.cpp  .
> 
> It  uses the  recently introduced    _print_ascii_file_h
> Function t more places (makes the code  a bit  shorter ) .

I like the intent here but I think we have lost a few newlines in the 
process. It isn't even clear to me that the result of print_ascii_file 
will end with a newline being printed. Can you check the before and 
after layout for readability please (and add to bug report).

Thanks,
David

> 
> Bug/webrev :
> 
> https://bugs.openjdk.java.net/browse/JDK-8244196
> 
> http://cr.openjdk.java.net/~mbaesken/webrevs/8244196.0/
> 
> Thanks, Matthias
>