The -a option was removed in 3.4.0 because the --timer option replaces it. In most cases, --timer defaults to gettimeofday() which is what -a did anyways, so you're not gaining anything by downgrading.
Honestly, if you're trying to get high performance, you really need to read the wiki sections about choosing a timing method and tuning for high-performance: http://tcpreplay.synfin.net/trac/wiki/tcpreplay#ChoosingaTimingMethod Short version: timing by --mbps is bad. Use --topspeed or --pps and --pps-multi instead. That said, 3.4.1 is getting really close to release. If you really have found a serious performance issue with --mbps, I'd like to fix it now, so please send me more info. Thanks, Aaron On Mon, Feb 16, 2009 at 9:11 PM, Rayne <lancer6...@yahoo.com> wrote: > It's alright. I've uninstalled tcpreplay 3.4.0 and installed 3.2.5 instead, > since I also want to use the -a option. > > Thank you. > > Regards, > Rayne > > --- On Tue, 17/2/09, Aaron Turner <synfina...@gmail.com> wrote: > >> From: Aaron Turner <synfina...@gmail.com> >> Subject: Re: [Tcpreplay-users] -M option >> To: "Main forum for tcpreplay" <tcpreplay-users@lists.sourceforge.net> >> Date: Tuesday, 17 February, 2009, 9:24 AM >> Sounds like a possible bug... I'll need more information >> to understand >> what's going on. Please read: >> >> http://tcpreplay.synfin.net/trac/wiki/Support#WhatInfoWeNeed >> >> and send me a few thousand packets gzipped if possible. >> >> On Mon, Feb 16, 2009 at 5:14 PM, Rayne >> <lancer6...@yahoo.com> wrote: >> > I've tried with a 4 GB file, and I'm still >> getting 2 - 3 Mbps. I'm able to get 900+ Mbps using the >> -t option, though. >> > >> > Thank you. >> > >> > Regards, >> > Rayne >> > >> > --- On Tue, 17/2/09, Aaron Turner >> <synfina...@gmail.com> wrote: >> > >> >> From: Aaron Turner <synfina...@gmail.com> >> >> Subject: Re: [Tcpreplay-users] -M option >> >> To: "Main forum for tcpreplay" >> <tcpreplay-users@lists.sourceforge.net> >> >> Date: Tuesday, 17 February, 2009, 12:56 AM >> >> On Mon, Feb 16, 2009 at 2:12 AM, Rayne >> >> <lancer6...@yahoo.com> wrote: >> >> > Hi, >> >> > >> >> > I'm using tcpreplay 3.4.0 and it seems >> that the -M >> >> option does not work for me. >> >> > >> >> > I used the command "tcpreplay -i eth0 -M >> 100 >> >> FILENAME", but the speed I got was 3 Mbps. I >> also tried >> >> "tcpreplay -i eth0 -M 100.0 FILENAME" >> and still >> >> got the speed of 3 Mbps. >> >> > >> >> >> >> This is common with really small pcap files- there >> just >> >> aren't enough >> >> packets to send enough data for an entire second- >> the >> >> result is >> >> tcpreplay's statistical reporting is off. >> >> >> >> -- >> >> Aaron Turner >> >> http://synfin.net/ >> >> http://tcpreplay.synfin.net/ - Pcap editing and >> replay >> >> tools for Unix & Windows >> >> Those who would give up essential Liberty, to >> purchase a >> >> little >> >> temporary Safety, >> >> deserve neither Liberty nor Safety. >> >> -- Benjamin Franklin >> > >> > >> > New Email names for you! >> > Get the Email name you've always wanted on the new >> @ymail and @rocketmail. >> > Hurry before someone else does! >> > http://mail.promotions.yahoo.com/newdomains/sg/ >> > >> > >> ------------------------------------------------------------------------------ >> > Open Source Business Conference (OSBC), March 24-25, >> 2009, San Francisco, CA >> > -OSBC tackles the biggest issue in open source: Open >> Sourcing the Enterprise >> > -Strategies to boost innovation and cut costs with >> open source participation >> > -Receive a $600 discount off the registration fee with >> the source code: SFAD >> > http://p.sf.net/sfu/XcvMzF8H >> > _______________________________________________ >> > Tcpreplay-users mailing list >> > Tcpreplay-users@lists.sourceforge.net >> > >> https://lists.sourceforge.net/lists/listinfo/tcpreplay-users >> > Support Information: >> http://tcpreplay.synfin.net/trac/wiki/Support >> > >> >> >> >> -- >> Aaron Turner >> http://synfin.net/ >> http://tcpreplay.synfin.net/ - Pcap editing and replay >> tools for Unix & Windows >> Those who would give up essential Liberty, to purchase a >> little >> temporary Safety, >> deserve neither Liberty nor Safety. >> -- Benjamin Franklin >> >> ------------------------------------------------------------------------------ >> Open Source Business Conference (OSBC), March 24-25, 2009, >> San Francisco, CA >> -OSBC tackles the biggest issue in open source: Open >> Sourcing the Enterprise >> -Strategies to boost innovation and cut costs with open >> source participation >> -Receive a $600 discount off the registration fee with the >> source code: SFAD >> http://p.sf.net/sfu/XcvMzF8H >> _______________________________________________ >> Tcpreplay-users mailing list >> Tcpreplay-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/tcpreplay-users >> Support Information: >> http://tcpreplay.synfin.net/trac/wiki/Support > > > Importing contacts has never been easier..Bring your friends over to > Yahoo! Mail today! http://www.trueswitch.com/yahoo-sg > > ------------------------------------------------------------------------------ > Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA > -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise > -Strategies to boost innovation and cut costs with open source participation > -Receive a $600 discount off the registration fee with the source code: SFAD > http://p.sf.net/sfu/XcvMzF8H > _______________________________________________ > Tcpreplay-users mailing list > Tcpreplay-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/tcpreplay-users > Support Information: http://tcpreplay.synfin.net/trac/wiki/Support > -- Aaron Turner http://synfin.net/ http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix & Windows Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. -- Benjamin Franklin ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Tcpreplay-users mailing list Tcpreplay-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/tcpreplay-users Support Information: http://tcpreplay.synfin.net/trac/wiki/Support
