RFR (s) 8085865: hs_err improvement: Printing /proc/cpuinfo makes too long hs_err files

[Mikael Gerdin]

Hi Coleen,

On 2015-06-11 18:06, Coleen Phillimore wrote:
> Summary: summarize information from linux-x86; it's too long and redundant
>
> The cpuinfo on one linux/x86 machine now prints:
>
> /proc/cpuinfo:
> model name      : Intel(R) Core(TM) i5-3550 CPU @ 3.30GHz
>
> on 32 bit machine:
> *
> */proc/cpuinfo:
> model name      : Intel(R) Xeon(R) CPU           L5520  @ 2.27GHz
> **
> Other linux platforms are unaffected because they don't print as much
> and information seems not redundant.

Would you be ok with printing one of the "flags" lines as well?

flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe 
syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good 
nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 
monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 
sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat 
epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid xsaveopt

It would give some quick insight into what CPU features were available 
during runtime.

/Mikael

>
> Rather than duplicating the pd_print_cpu_info function for all the
> os_cpu/linux* combinations, I added an ifdef.   In os_aix.cpp there's a
> pd_print_cpu_info, which is called from os::print_cpu_info that
> duplicates the information but I didn't touch it.
>
> open webrev at http://cr.openjdk.java.net/~coleenp/8085865.01/
> bug link https://bugs.openjdk.java.net/browse/JDK-8085865
>
> Thanks,
> Coleen
>
>