Date: Tue, 16 Jul 2002 11:25:06 +0200 From: Alexander Maret <maret@atrada.net> To: "'freebsd-stable@freebsd.org'" <freebsd-stable@freebsd.org> Subject: AW: mbuf clusters behavior (NMBCLUSTERS) Message-ID: <58A002A02C5ED311812E0050044517F00D2860@erlangen01.atrada.de>
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> -----Ursprungliche Nachricht----- > Von: naoyuki_tai@mac.com [mailto:naoyuki_tai@mac.com] > > When I copy a 500M file (like iso image) from the workstation to the > server, the server starts to emit: > > Jul 12 09:28:54 nile /kernel: All mbuf clusters exhausted, > please see tuning(7). I'm getting the same error here with 4.6-R. > So, I bumped up the nmbclusters to kern.ipc.nmbclusters=65536 > I allocated 128Mbytes to the mbuf clusters, hoping that it is > big enough. > But, it still shows that the same > > All mbuf clusters exhausted, please see tuning(7). The same for me. > How can I prevent this "mbuf clusters exhaustion"? I would be interested in an answer, too. > Relating to this, I do not understand why that the mbuf clusters > are not freed fast enough. I watched "top" and it does seem to be > that CPU is not exhausted. > After all, I'm copying less than 10Mbyte/sec, probably 6 - 7 Mbytes > at most. > Hard disk is a Seagate ATA/IV 60Gbyte.The drive is hooked up to a > Promise PCI ATA/UDMA 100 controller card. > bonnie shows that it can sustain 15M - 20M bytes read/write. I'm trying to copy data from an 1GHZ Mobile PIII Linux installation with IDE disks to an AMD Athlon 700 FBSD 4.6-R installation with Ultra 160 SCSI disks over NFS. I'm wondering too why the FreeBSD box can't cope with my lousy linux installation. Didn't have time to investigate though. > Is there anything I can try? Greetings, Alex To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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