RFR: 8154791: Xlog classload too redundant msgs info/debug

[Marcus Larsson]

Hi,


On 2017-05-03 08:23, Thomas Stüfe wrote:
> Hi Ioi,
>
> On Tue, May 2, 2017 at 11:10 PM, Ioi Lam <ioi.lam at oracle.com> wrote:
>
>> By the way, I think we should really fix this in the UL level -- have
>> multi-line buffering, so you can prevent other threads from interleaving
>> your input. Make it something like:
>>
>>      Log(class, load).start_buffering();
>>      log_info(class, load)(class name and source);
>>      log_debug(class, load)(other details);
>>      Log(class, load).flush();
>>
>> That way, the output will look like this:
>>
>> [0.162s][debug ][class,load] java.lang.Comparable source: jrt:/java.base
>> [0.162s][debug ][class,load] [NULL class_loader] 0x00000007c00013a8 super:
>> 0x00000007c0000fb0 bytes: 235 checksum: a75dadb6
>>
>> So the output will be terse, and still parsable.
>>
>> I think this will be useful for other types of logs as well, not just the
>> class loading logs.
>>
>>
> I thought that already exists:
>
> https://bugs.openjdk.java.net/browse/JDK-8145934
>
> see logMessage.hpp.
>
> Kind Regards, Thomas

Indeed it does. Thanks for pointing that out, Thomas.

Marcus