Possible network issue

Robert Engels rengels at ix.netcom.com
Wed Nov 8 12:38:44 UTC 2023


The thing is it never denies the memory request - just delays it. I am fairly certain if I raise the mbufs it will work - similar to lowering the transfer size - but I don’t think this is a viable solution. I think it needs to be resolved in the net layer. 

I could build the JDK “fixing” that method but that might take me a while. I have to assume you’re already set up to do so - I’m happy to test a build with the needed changes. :)

> On Nov 8, 2023, at 2:07 AM, Alan Bateman <Alan.Bateman at oracle.com> wrote:
> 
>  On 08/11/2023 00:50, robert engels wrote:
>> iMac:helidon_test robertengels$ netstat -nm
>> 61785/76680 mbufs in use:
>> 	54018 mbufs allocated to data
>> 	7527 mbufs allocated to packet headers
>> 	240 mbufs allocated to packet tags
>> 	14895 mbufs allocated to caches
>> 7991/10098 mbuf 2KB clusters in use
>> 20468/44823 mbuf 4KB clusters in use
>> 10909/10922 mbuf 16KB clusters in use
>> 398566 KB allocated to network (72.9% in use)
>> 0 KB returned to the system
>> 0 requests for memory denied
>> 10407 requests for memory delayed
>> 136 calls to drain routines
>> 
> I wonder if increasing the memory for mbuf clusters would help. Don't try this at home but I think `sudo nvram boot-args="ncl=797132"` + reboot will double it on this system. 
> 
> -Alan
> 
> 
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