Re: mmap over nfs leads to excessive system load

[Kenny Simpson]

--- Trond Myklebust <trond.myklebust@xxxxxxxxxx> wrote:
> OK, please back out the patch that I sent you, and try this one instead.

THAT'S IT!

Very nice..  30MB+/sec sustained for several minutes..
only 25% system CPU and the new profile is:

samples  %        symbol name
1047754  32.9054  pci_conf1_write
193876    6.0888  _spin_lock_irqsave
152897    4.8018  skb_copy_bits
74745     2.3474  _spin_lock
73273     2.3012  __copy_from_user_ll
69273     2.1756  __lookup_tag
65084     2.0440  _spin_unlock_irqrestore
43803     1.3757  sub_preempt_count
32047     1.0065  tcp_v4_rcv
30895     0.9703  schedule
26161     0.8216  kfree

Thank you!

-Kenny



		
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