Wireshark mailing list archives
Re: Slow database access
From: John Hinckley <john () johnhinckley net>
Date: Mon, 23 Nov 2009 17:02:21 -0800
Thanks Tal and Joan! I'm pretty sure it has something to do with the tcp checksum errors but I'm going to keep digging. Regards, John On Mon, Nov 23, 2009 at 3:54 PM, j.snelders <j.snelders () telfort nl> wrote:
Hi,
Hopefully this information is useful:
Slow Network Write Speeds via SMB & CIFS <snip> File Transfer Benchmarks: Windows XP to Windows Server (SMB Writing): ~ 25 Mbps Windows XP to Windows Server (SMB Reading): ~ 75 Mbps Windows 7 to Windows Server (SMB2 Writing): ~ 90 Mbps Windows 7 to Windows Server (SMB2 Reading): ~ 90 Mbps <snip> http://social.technet.microsoft.com/Forums/en/winserverfiles/thread/46898c7f-92e0-4c99-98d2-18a7458a7d2d Best regards Joan From: Tal Bar-Or <tbaror@xxxxxxxxx> On Mon, 23 Nov 2009 23:43:53 +0200 Tal Bar-Or wrote: just from first look it seems that your DB server is having some kind file system delay (smb) 4 sec approx, although i saw it also from client side in the system part. On Mon, Nov 23, 2009 at 8:47 AM, John Hinckley <john@xxxxxxxxxxxxxxxx> wrote: I'm not sure whether it was a windows update or a symantec update but something caused my customer's pervasive database to start dragging. I took a capture from a workstation client and it only seems slow when retrieving the data but once the data is retrieved, manipulating seems normal. There are 3-10 second delays in accessing tables etc. The workstation IP: 192.168.0.13 (windows xp pro sp3) Database Server IP: 192.168.0.3 (windows server 2008 standard) Application Name: Agris (pervasive database) I've completely disabled symantec on both the client and the server and it hasn't made a bit of difference. I'm having a hard time sifting through the capture I took. All I did was have the client login and access a report during the capture. Maybe 20 seconds tops. I've attached the capture file; if anyone can see anything useful, I would appreciate you sharing it. TIA, John ___________________________________________________________________________ Sent via: Wireshark-users mailing list <wireshark-users () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-users Unsubscribe: https://wireshark.org/mailman/options/wireshark-users mailto:wireshark-users-request () wireshark org ?subject=unsubscribe
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Current thread:
- Slow database access John Hinckley (Nov 23)
- Re: Slow database access Tal Bar-Or (Nov 23)
- <Possible follow-ups>
- Re: Slow database access j.snelders (Nov 23)
- Re: Slow database access John Hinckley (Nov 23)
- Re: Slow database access Martin Visser (Nov 23)
- Re: Slow database access John Hinckley (Nov 23)