On 07/12/2012 06:36 AM, Kuo Hugo wrote:
Hi all
I found that the arp_cache in slabinfo on objec-server is growing up
followed with uploaded object numbers.
Does any code using it ?
The code which maps from IP to Ethernet addresses does. That mapping is
what enables sending IP datagrams to their next-hop destination (which
may be the final hop, depending) on an Ethernet network.
2352000 1329606 56%0.06K 36750 64 147000K kmalloc-64
1566617 1257226 80%0.21K 42341 37338728K xfs_ili
1539808 1257748 81%1.00K 48119 32 1539808K xfs_inode
538432 470882 87%0.50K 16826 32269216K kmalloc-512
403116 403004 99%0.19K 9598 42 76784K dentry
169250 145824 86% 0.31K 6770 25 54160K arp_cache
Does it may cause any performance concern ?
I believe that is one of those it depends kinds of questions.
Btw , how could I flush the memory of arp_cache which using by XFS(SWIFT)?
You can use the classic arp command to manipulate the ARP cache. It
can also show you how many entries there are. I suspect that a web
search on linux flush arp cache may yield some helpful results as well.
rick jones
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