Messages in this thread | ![/](/images/icornerl.gif) | | From | (Alan Cox) | Subject | Re: 2.1.76, nfs client, and memory fragmentation | Date | Mon, 5 Jan 1998 21:58:29 +0000 (GMT) |
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> > some network throughput tests in four configs. I'm only posting the > > Bonnie runs in the interest of brevity. > > ext2 file system code uses memcpy_fromfs to copy blocks, not > copy_to/from_user.
My runs match or exceed his. On a low memory machine the pages I get back far exceed any loss due to calls. On a bigger box it appears the call overhead is either lost in noise or absorbed by increased cache hits. The place you'd expect it to show most is small operations anyway not big copies which are a tiny call overhead and a big loop
Alan
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