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#1
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network utilization 60%...can i get more??
im tranferring large files from 1 xp pro machine to another via
crossover cable. these pc's are not hooked up to any other network device. my nic's are 100mbps. i know the theorectical max xfer rate for 100base T is 12.5 MB/s but I only seem to max out at 7 MB/s with 60-70% network utilization. I dont have any other processes or anything else eating cpu time. is there any way to get 100% utilization out of a file transfers and obtain the max 12.5 MB/s xfer rate? |
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#2
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network utilization 60%...can i get more??
Probably not - 60% is a pretty good utilization rate.
-- Richard G. Harper [MVP Shell/User] * PLEASE post all messages and replies in the newsgroups * for the benefit of all. Private mail is usually not replied to. * My website, such as it is ... http://rgharper.mvps.org/ * HELP us help YOU ... http://www.dts-l.org/goodpost.htm "Brian" wrote in message ... im tranferring large files from 1 xp pro machine to another via crossover cable. these pc's are not hooked up to any other network device. my nic's are 100mbps. i know the theorectical max xfer rate for 100base T is 12.5 MB/s but I only seem to max out at 7 MB/s with 60-70% network utilization. I dont have any other processes or anything else eating cpu time. is there any way to get 100% utilization out of a file transfers and obtain the max 12.5 MB/s xfer rate? |
#3
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network utilization 60%...can i get more??
On Tue, 28 Dec 2004 20:50:11 -0600, Brian
wrote: im tranferring large files from 1 xp pro machine to another via crossover cable. these pc's are not hooked up to any other network device. my nic's are 100mbps. i know the theorectical max xfer rate for 100base T is 12.5 MB/s but I only seem to max out at 7 MB/s with 60-70% network utilization. I dont have any other processes or anything else eating cpu time. is there any way to get 100% utilization out of a file transfers and obtain the max 12.5 MB/s xfer rate? Brian, well designed network adapters will easily reach 11 to 12 MB/s. In fact, anything less points squarely at a defect or at a low quality component. The most common causes of lower throughput is that your data source and sink are not as fast. How fast are your hard disks, particularly when they write? You can test your network throughput by writing a looping batch file that keeps copying the same file of some 1 MB in size to the same destination. After a few cycles the file will be in the disk cache, so the disk will no longer limit the speed. Of course this works only if the receiving disk has an active write cache that is big enough. I'm not sure whether the Windows cache caches large chunks of write data. Have never tested that, as all hard disks I use have an enabled write cache. Another cause for lower throughput is that the network adapter issues too many interrupts and the interrupt reaction routine uses too much processor time. You can test this by firing up Task Manager (press Ctrl + Shift + Esc) and looking at the processor load. Activate kernel times. You will then see the interrupt load in red. It should be much less than 50%. Hans-Georg -- No mail, please. |
#4
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I've tried using Mandrake 10.1 samba, u will get 80-90%..
Or try the tiny NASlite from http://www.serverelements.com/naslite.php It will give 90% utilization. BUT dont try with file over 100MB, naslite got bugs with large file. Is there anyone care to tune windows' filesharing to 60% util. ? Or windows' filesharing just sux?? "Richard G. Harper" wrote: Probably not - 60% is a pretty good utilization rate. -- Richard G. Harper [MVP Shell/User] * PLEASE post all messages and replies in the newsgroups * for the benefit of all. Private mail is usually not replied to. * My website, such as it is ... http://rgharper.mvps.org/ * HELP us help YOU ... http://www.dts-l.org/goodpost.htm "Brian" wrote in message ... im tranferring large files from 1 xp pro machine to another via crossover cable. these pc's are not hooked up to any other network device. my nic's are 100mbps. i know the theorectical max xfer rate for 100base T is 12.5 MB/s but I only seem to max out at 7 MB/s with 60-70% network utilization. I dont have any other processes or anything else eating cpu time. is there any way to get 100% utilization out of a file transfers and obtain the max 12.5 MB/s xfer rate? |
#5
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Try use win98 copy files from xp, u will get 90% utilization...
There must be some bug with XP's serverlanman?? "Brian" wrote: im tranferring large files from 1 xp pro machine to another via crossover cable. these pc's are not hooked up to any other network device. my nic's are 100mbps. i know the theorectical max xfer rate for 100base T is 12.5 MB/s but I only seem to max out at 7 MB/s with 60-70% network utilization. I dont have any other processes or anything else eating cpu time. is there any way to get 100% utilization out of a file transfers and obtain the max 12.5 MB/s xfer rate? |
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