Norton Internet Security / Norton AntiVirus

[Olex]

Silverhawk;
maybe Norton has the least OVERAL impact on the system. BUT, it is not acceptable that the driver drains 30%+ of the bandwidth! I have tested this with other suites and found that there is at least two other vendors that actually gives me 50+ MB/s from my server. For my daily work, I transfer thousands of NEF images (Nikon’s RAW format, 10+MB files) to/from my server. I have also noticed that transfer of big files, stops randomly and then continue again. Sorry Symantec, this is not god enough and has to be fixed ASAP. 

Without NIS/NAV installed, I also reach over 109MB/s with my 683MB test zip file!

Regards,

Ole Martin

 

Message Edited by Olex on 09-22-2009 09:04 AM

Message Edited by Olex on 09-22-2009 09:18 AM

[MikeMcr]

Silverhawk: this is not acceptable behaviour at all.

Running Windows 7 RTM x64 and NIS 2010. I was wondering why my HD movies streamed from my NAS were suddenly jerky and after some tests I can confirm this network slowdown problem.

NIS 2010 is turning into a bad release. Slow Windows startup. Slow IE8 tab close (resolved by disabling Norton addins). Slow network performance.

Looks like I will be uninstalling and going elsewhere.

[silverhawk]

Ok OK OK baba..!! i have realized it.. but though it does affect, i have tested on heavy file transfer, Symantec gonna see this soon i hope.

[skypx]

Wow, this is a good find. I had to move files (>4GB) back and forth to really notice the difference with and without NIS2010 installed. I did find that if I add the mapped drive to the auto-protect/scan exclusions lists, performance improved a bit. Thankfully I am not getting performance hits like you guys are.

[metalhead82]

I cannot help but note that nobody from Symantec has posted and said, 'Yes, we are aware of this and we are looking at attempting a fix for it.'

It would be much appreciated by all affected users if a Symantec employee would take ownership of this issue and attempt to improve the performance of the IPS filter, which is an excellent layer of protection, but needs to be tamed in terms of network throughput hit.

We all await a reply on this issue.

[Olex]

Metalhead; nothing could be more true! I should appreciate a clear response from Symantec, stating that “yes, we are aware of this and we are working on a fix for it”. But so far, we can only hear Art Garfunkel singing “as the sound of silence”…

I have confirmed this on a clean install, vista x86, and see exactly the same issue. My big folder, 698MB (Consist 66 NEF files), finished copying in 11 to 15 seconds before installing NIS. After installing, the same file was clocked to 40 seconds!
I write this on my work PC (for heavy imaging/video works), and sorry Symantec, your product is swapped for another where the same file is clocked to 16,6 seconds!

[bwoirhaye]

An engineering team is working on this issue.  There are no solutions yet identified, though.

As one user mentioned, adding the remote mapped directory to the autoprotect exclusion lists will improve throughput somewhat by preventing additional AV scans, but use exclusions with caution. 

[metalhead82]

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bwoirhaye wrote:

An engineering team is working on this issue.  There are no solutions yet identified, though.

As one user mentioned, adding the remote mapped directory to the autoprotect exclusion lists will improve throughput somewhat by preventing additional AV scans, but use exclusions with caution. 

---

That doesn't make any difference from my tests and whatsmore, I don't use mapped network drives normally anyway and you cannot add a UNC path to the autoprotect exclusions so this wouldn't be a workable workaround for me even if it did make a difference. 

The issue is with the IPS component causing the slowdown as with the driver unloaded, normal network speeds are attainable.

I'm pleased that there is somebody working on the issue however, hopefully a solution will be forthcoming soon.

[Ameya]

As one of the earlier posts says, we are taking a look at the issue and we appreciate your patience.

In order to help us resolve it, we have asked for some environment details from some of you. It will help us expedite the investigation. Please respond to those Priovate Message so we can get some valuable information in isolating this.

Thanks,

-Ameya

[metalhead82]

Is there any progress on this issue please as it is continuing to cause me issues with copying files to my server and it has been 2 weeks since the last update.

Cheers,

Will.