search for: troughput

hi, does someone tried bridge and or router functionality of linux kernel on multiprocessor system. Does multiprocessor system increase network performance or give ability to process higher traffic.. What about highest possible troughput someone have achieved ? etc.. tia _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Hey Guys, when starting a DomU we use iscsi as disks for our vms. When testing throughput I get half the troughput in contrast to tests on the Dom0 itself. For Example: I log in the target on the xenhost (Dom0) itself and get a troughput of 80mb/s. that''s ok Now im starting the VM (DomU) and the same target is now attached as xvdb. When doing troughput tests the speed is about 40mb/s. The Do...

...each email message. When using mdbox, multiple messages are appended to a single file until it reaches/passes the rotate limit. I would like to understand better how the mdbox format impacts on IO performance. I think it's generally expected that fewer larger file translate to less IO and more troughput when compared to more small files, but how does dovecot handle that with mdbox? If dovecot does flush data to storage upon each and every new email is arrived and appended to the corresponding file, would that mean that it generate the same ammount of IO as it would do with one file per message? Al...

Hi everybody, I have a question about network interface used for tiering in glusterfs, if I have a 1G nic on glusterfs servers and clients, can I get more performance by setting up glusterfs tiering?or the network interface should be 10G? -------------- next part -------------- An HTML attachment was scrubbed... URL:

...nnect Direct. - Several other NT servers and workstations running NT 4 with servicepack 6. The Connect Direct servers are used to transfer data from and to our mainframe. The data can be located anywhere on a fileserver within our LAN or even WAN. After the new fileservers were installed the data-troughput dropped from several MB per second to bytes per second. A file download from mainframe to LAN would take some seconds before, now it takes up to hours! However, an upload was no problem. We checked the connect direct servers and discovered that the only servers it would have a problem with were in...

On 1/31/2015 10:34 AM, Valeri Galtsev wrote: > I see that single link DVI supports up to WQUXGA (3,840 ? 2,400) @ 17 Hz > (164 MHz) whereas dual link DVI supports up to WQUXGA (3,840 ? 2,400) @ 33 > Hz with GTF blanking (2 ? 159 MHz) those numbers seem wrong to me. nothing I've ever seen uses 17hz or 33hz refresh, its all pretty much 60Hz in LCD flat panel land. single link DVI

I fear this is yet another thread that will remain unanswered, but as you can tell from the subject line there's a twist. Basically I am doing an XCOPY from my XP machine to my Linux box running samba 3.0.22. Everything works, but it's very slow for the Gigabit Ethernet it's running on compared with FTP to the same machine and directory with the same files, say 1/10th the speed. So

...s the rotate limit. > >>> > >>> I would like to understand better how the mdbox format impacts on IO > >>> performance. > >>> I think it's generally expected that fewer larger file translate to > less > >> IO > >>> and more troughput when compared to more small files, but how does > >> dovecot > >>> handle that with mdbox? > >>> If dovecot does flush data to storage upon each and every new email is > >>> arrived and appended to the corresponding file, would that mean that it > &gt...

....5 minutes for 10 MB!!! The funny thing is I had found discussions about a tool named IOZONE.EXE and got it. The test say 2 MB per sec in each direction.. what is this?? I guess there are or must be some problems in the stack? OS ? Whatever else? I'm not sure about what is normally seen as fast troughput on 100Mb FD Network ... Can anybody give me some idea what are reachably marks for NT and DOS clients? So I'll paste some cuts from various ini files and hope anybody can help me solving this problem. ---- smb.conf ---- socket options=TCP_NODELAY SO_SNDBUF=32678 SO_RCVBUF=32678 read size=8192...

...mdbox, multiple messages are appended to a single file until it > reaches/passes the rotate limit. > > I would like to understand better how the mdbox format impacts on IO > performance. > I think it's generally expected that fewer larger file translate to less IO > and more troughput when compared to more small files, but how does dovecot > handle that with mdbox? > If dovecot does flush data to storage upon each and every new email is > arrived and appended to the corresponding file, would that mean that it > generate the same ammount of IO as it would do with one...

I recently asked this question, but I didn't get an answer on this part of my question: What hardware would be able to do this with ease: I must install a samba server as PDC for my school. The server would authenticate users using openldap (on the same server). And if possible, I would also run an intranet on it (apache, php, mysql). There would be about a hundred (maybe 150 later on)

...to a single file until > it > > reaches/passes the rotate limit. > > > > I would like to understand better how the mdbox format impacts on IO > > performance. > > I think it's generally expected that fewer larger file translate to less > IO > > and more troughput when compared to more small files, but how does > dovecot > > handle that with mdbox? > > If dovecot does flush data to storage upon each and every new email is > > arrived and appended to the corresponding file, would that mean that it > > generate the same ammount of IO...

Hello, On Mon, 17 May 2004, Charles-Etienne.Dube wrote: > I did some tests with 2 cable modems, but now it is installed in a production > environment with 4 cable modems. At first, everything seemed to work fine.. > But now I had a couple of users tell me that some web pages were > not available while others were, and it semms to be a masquerading problem > since when I

Hello, I''m trying to configure several wireless routers with QoS support. The idea is to implement differentiated services so that VoIP traffic gets the maximal priority, then video, control traffic, interactive data traffic and best-effort traffic. I have seen that CBQ used to be chosen as qdisc for implementing bandwith share in DiffServ but now HTB is preferred because it is

...atest bios from ASUS site, I tried various combinations of bios, also without success. I tried to activate the device polling unsuccessfully to solve the problem. I tried disable acpi on boot menu but the ser without acpi wont boot. I tried disable TOE, FLOW CONTROL, no sucess. This is a link to a troughput 60 Mbits with multiple VLANs (more than 200) Wisp provider. I tested the same server same hardware but using linux (debian 6) did the bridges, and everything worked properly!, so it is clear that this is a problem software (in intel em driver?) Tested on another server (P5VD2MX + Core2Duo) but with...

hi, one customer told us, that he has performance problem in his Thunderbird 3.1.9, while open his sent folder, which has round about 4000 mails in it, and 20k in his Inbox. For example TB, tries to sync the sent-folder list (over SSL) from the sent folder for now over 15min. In the log, I can't see any strange things, so for me, Dovecot works ok. Maybe, I should use better cache options?

...r me, and I haven't see any crashes. I have done some light benchmarking (with v4), compared to userspace, I see improved latency (as I save up to 4 system calls per packet) but not bandwidth/CPU (as TSO and interrupt mitigation are not supported). For ping benchmark (where there's no TSO) troughput is also improved. Features that I plan to look at in the future: - tap support - TSO - interrupt mitigation - zero copy Acked-by: Arnd Bergmann <arnd at arndb.de> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- MAINTAINERS | 10 + arch/x86/kvm/Kconfig...

...r me, and I haven't see any crashes. I have done some light benchmarking (with v4), compared to userspace, I see improved latency (as I save up to 4 system calls per packet) but not bandwidth/CPU (as TSO and interrupt mitigation are not supported). For ping benchmark (where there's no TSO) troughput is also improved. Features that I plan to look at in the future: - tap support - TSO - interrupt mitigation - zero copy Acked-by: Arnd Bergmann <arnd at arndb.de> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- MAINTAINERS | 10 + arch/x86/kvm/Kconfig...