Hello Till, on my side i am using sysdig on order to check what is wrong on the system and it really help to understand where is the bottleneck.
Also in the next few week i will probably work on pfbandwithd, so i will add the usage of pfqueue. Regards Fabrice Le 2016-11-05 à 08:33, g4-l...@tonarchiv.ch a écrit : > Hello Fabrice, > > Ah you think that also the DB could be the bottleneck? Hard drive I/O > isn't - latency is still under 1ms and buffers are not filling up. > > I guess I need some more fine grained monitoring the understand what is > going on... > > Any advice on how to monitor which process is eating CPU? With htop it > always is pfbandwidth on the top line of CPU time use. > > I was think that, because it is only one CPU core loaded to 100%, it > must be a single thread. You think that DB handling of the pfbandwidth > thread could be the time consuming part? > Some buffering with a queue sounds like a good solution then. > > Thank you, > Till > > > On 05.11.2016 00:27, Durand fabrice wrote: >> Hello Till, >> >> We probably can do something and save the stats via pfqueue >> (inline_accounting_update_session_for_ip in pfqueue). >> >> It need a little bit of dev (really few). >> >> also can you check one the db side if there is no issue ? >> >> Regards >> >> Fabrice >> >> >> >> Le 2016-10-30 à 05:04, g4-l...@tonarchiv.ch a écrit : >>> Hi there, >>> >>> We are using PF in in-band mode and also have accounting enabled. >>> >>> Now it seems that pfbandwidth is the bottleneck in this setup. >>> We have 4 core CPU, 8GB RAM and SSD disk. I/O latency and RAM usage is >>> no issue. But pfbandwidth takes 100% of one core when we put some load >>> on the box (10 clients, total of approx. 10MB/s). >>> >>> I understand that pfbandwidth has to be single threaded because of the >>> way how it gets the traffic data from the kernel. >>> But I wonder if there is some way to tune it to get a better performance >>> under high load? >>> >>> Best regards, >>> Till >>> >>> >>> ------------------------------------------------------------------------------ >>> The Command Line: Reinvented for Modern Developers >>> Did the resurgence of CLI tooling catch you by surprise? >>> Reconnect with the command line and become more productive. >>> Learn the new .NET and ASP.NET CLI. Get your free copy! >>> http://sdm.link/telerik >>> _______________________________________________ >>> PacketFence-devel mailing list >>> PacketFence-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/packetfence-devel >> ------------------------------------------------------------------------------ >> Developer Access Program for Intel Xeon Phi Processors >> Access to Intel Xeon Phi processor-based developer platforms. >> With one year of Intel Parallel Studio XE. >> Training and support from Colfax. >> Order your platform today. http://sdm.link/xeonphi >> _______________________________________________ >> PacketFence-devel mailing list >> PacketFence-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/packetfence-devel > > ------------------------------------------------------------------------------ > Developer Access Program for Intel Xeon Phi Processors > Access to Intel Xeon Phi processor-based developer platforms. > With one year of Intel Parallel Studio XE. > Training and support from Colfax. > Order your platform today. http://sdm.link/xeonphi > _______________________________________________ > PacketFence-devel mailing list > PacketFence-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/packetfence-devel ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ PacketFence-devel mailing list PacketFence-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/packetfence-devel
