Wireshark mailing list archives
Re: Fw: Re: How to find the bottleneck?
From: Pedro Tumusok <pedro.tumusok () gmail com>
Date: Tue, 29 Aug 2017 11:06:57 +0200
Hi, I will plug Jaspers blog post, before he gets to do it himself. https://blog.packet-foo.com/2014/09/how-millisecond-delays-may-kill-database-performance/ Pedro On Tue, Aug 29, 2017 at 10:45 AM, Dennis Schneck <dennisschneck () web de> wrote:
Hello Anne, Hello Hugo, I tryed to get some statistics ( smb2, RTT, data usage ). *Gesendet:* Montag, 28. August 2017 um 17:35 Uhr *Von:* "Anne Blankert" <anne.blankert () geodan nl> *An:* "Community support list for Wireshark" < wireshark-users () wireshark org> *Betreff:* Re: [Wireshark-users] How to find the bottleneck? * Are you sure the branch has a 1 GB/s connection to HQ? 1GB/s possible, but quite good for current standards. * The network is as slow as the slowest link. Are you sure that the slowest link between the branch client and HQ server is 1GB/sec? If traffic is routed over public internet between branch and HQ, there are likely some bottlenecks beyond your control * Is there network latency between branch and headquarters? Even on high bandwidth connections, network latency can cause low data transfer rates because some protocols are very chatty: the next packet is sent only after receiving acknowledgment for the previous packet. With high latency networks, this may result in sometimes very poor transfer speeds 2017-08-28 14:37 GMT+02:00 Dennis Schneck <dennisschneck () web de>:Hello, the following scenario headquarter: Server (AIX) and client (Windows) branch: client (Windows) If the Clients from the branch open a project from the server in the headquarter it takes about 5 times longer than the same project open in headquarters. The bandwith from the branch is 1 GB/s for the hole company. So OK it takes longer in the branch but 5 times. The Data is on the Storage System. How to find the bottleneck in the network ? The networkadmin is sure all is fine. made a IO Graph from "tcp.seq" from one of some sample Data I got from the Users SPW = BAD = branch SPG = GOOD = headquarter Thanks Dennis ____________________________________________________________ _______________ Sent via: Wireshark-users mailing list <wireshark-users () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-users Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-users mailto:wireshark-users-request () wireshark org?subject= unsubscribe___________________________________________________________________________ Sent via: Wireshark-users mailing list Archives: https://www.wireshark.org/lists/wireshark-users Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-users mailto: wireshark-users-request () wireshark org?subject=unsubscribe ____________________________________________________________ _______________ Sent via: Wireshark-users mailing list <wireshark-users () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-users Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-users mailto:wireshark-users-request () wireshark org?subject= unsubscribe
-- Best regards / Mvh Jan Pedro Tumusok
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Current thread:
- How to find the bottleneck? Dennis Schneck (Aug 28)
- Re: How to find the bottleneck? Hugo van der Kooij (Aug 28)
- Re: How to find the bottleneck? Dennis Schneck (Aug 28)
- Re: How to find the bottleneck? Anne Blankert (Aug 28)
- Re: How to find the bottleneck? Dennis Schneck (Aug 28)
- Fw: Re: How to find the bottleneck? Dennis Schneck (Aug 29)
- Re: Fw: Re: How to find the bottleneck? Pedro Tumusok (Aug 29)
- Re: Fw: Re: How to find the bottleneck? Hugo van der Kooij (Aug 29)
- Re: How to find the bottleneck? Hugo van der Kooij (Aug 28)