What is the current kernel debug buffer size?

[kamilazat]

Hi everyone.

Admin Guides state that the maximum supported buffer size is 8192k. But I also saw in some non-official websites that it is 32M.

Was it 32M before and it was reduced to 8M? Or the values are different for different debugs?

Cheers!

[_Val_ · Accepted solution]

The debug buffer in R8X versions is allocated per FW core instance. It's maximum is 8192K. In the previous versions the allocation was global, which is no longer relevant.

[kamilazat]

Fast and efficient! Thank you!

[the_rock]

You can also refer to below.

Andy

https://sc1.checkpoint.com/documents/R80.30/WebAdminGuides/EN/CP_R80.30_QoS_AdminGuide/html_frameset...

[Timothy_Hall]

Also be aware that starting in R82, there is a new underlying debug mechanism (ndebug) for gateways with 72+ cores present:

https://sc1.checkpoint.com/documents/R82/WebAdminGuides/EN/CP_R82_PerformanceTuning_AdminGuide/Conte...

[kamilazat]

Yes, I noticed that while checking the buffer size in R82. And if I understand correctly, it reduces the usage of system resources while debugging. Although I'm not sure why they separated ndebug and kdebug by 72 cores. Wouldn't ndebug help if I had a GW with less than 72 cores but a busy one? Maybe there is a detail that I'm not aware yet.