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Gigabit Lan

powerMarkymark

Platinum Member
I bought a D-Link Gigabit switch and Cat6 cables to connect my computers.

What speeds can I realistically expect ?

All computers running WinXP Pro.

TIA

M@rc
 
You can expect gigabit speeds! Nah , you most likely wont notice the speed bump unless you transfer huge video/audio files. Thats where gigabit shines. I use it for my HTPC server. It's great.
 
Originally posted by: thespeakerbox
You can expect gigabit speeds! Nah , you most likely wont notice the speed bump unless you transfer huge video/audio files. Thats where gigabit shines. I use it for my HTPC server. It's great.

I do transfer large files between computers and have noticed a faster transfer for these large files.

What is a realistic Kbps transfer rate?

M@rc
 
I do transfer large files between computers and have noticed a faster transfer for these large files.

What is a realistic Kbps transfer rate?

M@rc

You're typically going to be limited by the writing speed of your destination computer. However, this stuff can get complicated very quickly, and even involve the computational speed on the computer(s) doing the work. It doesn't have to make sense; it just does. Getting it to make sense, and not be bottlenecked on the friggin' CPU can be a challenge. I think in this case that I saw on my computers, some low-level system resource got filled or stressed, and that showed up as a CPU bottleneck because the system was doing far too much mucking around with that system resouce...

Whether or not you have write caching enabled can make a difference. The direction in which you're doing the transfers can make a difference. So far, it's better to copy the file from the destination computer, but who knows what all the facets of the universal rule would be.

File transfer speeds are typically discussed in MB/s (either as per 10^6 bytes per second, but also as per 2^20 bytes per second). It's sad, I know, but these days I'm happy if I can sustain a 30 MB/s (comparable to 300 mbps) transfer over a (very) large set of files, using RAID.

Perhaps I'll figure out that system bottleneck in time, but for now I see large transfers / backups degrading to 10 MB/s and even lower before very long, and there we're looking at standard LAN speeds, no longer gigabit speed.
 
Originally posted by: Madwand1
I do transfer large files between computers and have noticed a faster transfer for these large files.

What is a realistic Kbps transfer rate?

M@rc

You're typically going to be limited by the writing speed of your destination computer. However, this stuff can get complicated very quickly, and even involve the computational speed on the computer(s) doing the work. It doesn't have to make sense; it just does. Getting it to make sense, and not be bottlenecked on the friggin' CPU can be a challenge. I think in this case that I saw on my computers, some low-level system resource got filled or stressed, and that showed up as a CPU bottleneck because the system was doing far too much mucking around with that system resouce...

Whether or not you have write caching enabled can make a difference. The direction in which you're doing the transfers can make a difference. So far, it's better to copy the file from the destination computer, but who knows what all the facets of the universal rule would be.

File transfer speeds are typically discussed in MB/s (either as per 10^6 bytes per second, but also as per 2^20 bytes per second). It's sad, I know, but these days I'm happy if I can sustain a 30 MB/s (comparable to 300 mbps) transfer over a (very) large set of files, using RAID.

Perhaps I'll figure out that system bottleneck in time, but for now I see large transfers / backups degrading to 10 MB/s and even lower before very long, and there we're looking at standard LAN speeds, no longer gigabit speed.

That is usually a driver problem (bad setting, low end hardware). You might try updated drivers/tweaking the settings or getting a new card. Not sure how good the new onboards are, but I like the Intel copper gigbit cards.
 
You didn't specify if your NIC's are 1GB or 100MB.
If there 1GB also then u'll see a nice increase in speed if your transfering large files.
If they are 100MB you will not see an increase.
 
Originally posted by: PC_Freak
You didn't specify if your NIC's are 1GB or 100MB.
If there 1GB also then u'll see a nice increase in speed if your transfering large files.
If they are 100MB you will not see an increase.

Yup, all my coputers have onboard Gb Nic.

M@rc
 
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