Re: Still not sexy! (Re: sendfile+zerocopy: fairly sexy (nothing to dowith ECN)
On Tue, 30 Jan 2001, Rick Jones wrote: > > ** I reported that there was also an oddity in throughput values, > > unfortunately since no one (other than me) seems to have access > > to a gige cards in the ZC list, nobody can confirm or disprove > > what i posted. Here again as a reminder: > > > > Kernel | tput | sender-CPU | receiver-CPU | > > - > > 2.4.0-pre3 | 99MB/s | 87% | 23% | > > NSF||| | > > - > > 2.4.0-pre3 | 86MB/s | 100% | 17% | > > SF ||| | > > - > > 2.4.0-pre3 | 66.2 | 60% | 11% | > > +ZC| MB/s || | > > - > > 2.4.0-pre3 | 68 | 8% | 8% | > > +ZC SF| MB/s || | > > - > > > > Just ignore the CPU readings, focus on throughput. And could someone plese > > post results? > > In the spirit of the socratic method :) ;-> > > Is your gige card based on Alteon? Yes, sir, it is. To be precise: ** Sender: SMP-PII-450Mhz, ASUS m/board; 3com version of acenic - 1M version ** receiver: same hardware; acenic alteon card - 1M version > How does ZC/SG change the nature of the packets presented to the NIC? what do you mean? I am _sure_ you know how SG/ZC work. So i am suspecting more than socratic view on life here. Could be influence from Aristotle;-> > How well does the NIC do with that changed nature? > Hard question to answer ;-> I havent done any analysis at that level cheers, jamal - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: Still not sexy! (Re: sendfile+zerocopy: fairly sexy (nothing to dowith ECN)
> ** I reported that there was also an oddity in throughput values, > unfortunately since no one (other than me) seems to have access > to a gige cards in the ZC list, nobody can confirm or disprove > what i posted. Here again as a reminder: > > Kernel | tput | sender-CPU | receiver-CPU | > - > 2.4.0-pre3 | 99MB/s | 87% | 23% | > NSF||| | > - > 2.4.0-pre3 | 86MB/s | 100% | 17% | > SF ||| | > - > 2.4.0-pre3 | 66.2 | 60% | 11% | > +ZC| MB/s || | > - > 2.4.0-pre3 | 68 | 8% | 8% | > +ZC SF| MB/s || | > - > > Just ignore the CPU readings, focus on throughput. And could someone plese > post results? In the spirit of the socratic method :) Is your gige card based on Alteon? How does ZC/SG change the nature of the packets presented to the NIC? How well does the NIC do with that changed nature? rick jones sometimes, performance tuning is like squeezing a balloon. one part gets smaller, but then you start to see the rest of the balloon... -- ftp://ftp.cup.hp.com/dist/networking/misc/rachel/ these opinions are mine, all mine; HP might not want them anyway... :) feel free to email, OR post, but please do NOT do BOTH... my email address is raj in the cup.hp.com domain... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: Still not sexy! (Re: sendfile+zerocopy: fairly sexy (nothing to dowith ECN)
** I reported that there was also an oddity in throughput values, unfortunately since no one (other than me) seems to have access to a gige cards in the ZC list, nobody can confirm or disprove what i posted. Here again as a reminder: Kernel | tput | sender-CPU | receiver-CPU | - 2.4.0-pre3 | 99MB/s | 87% | 23% | NSF||| | - 2.4.0-pre3 | 86MB/s | 100% | 17% | SF ||| | - 2.4.0-pre3 | 66.2 | 60% | 11% | +ZC| MB/s || | - 2.4.0-pre3 | 68 | 8% | 8% | +ZC SF| MB/s || | - Just ignore the CPU readings, focus on throughput. And could someone plese post results? In the spirit of the socratic method :) Is your gige card based on Alteon? How does ZC/SG change the nature of the packets presented to the NIC? How well does the NIC do with that changed nature? rick jones sometimes, performance tuning is like squeezing a balloon. one part gets smaller, but then you start to see the rest of the balloon... -- ftp://ftp.cup.hp.com/dist/networking/misc/rachel/ these opinions are mine, all mine; HP might not want them anyway... :) feel free to email, OR post, but please do NOT do BOTH... my email address is raj in the cup.hp.com domain... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: Still not sexy! (Re: sendfile+zerocopy: fairly sexy (nothing to dowith ECN)
On Tue, 30 Jan 2001, Rick Jones wrote: ** I reported that there was also an oddity in throughput values, unfortunately since no one (other than me) seems to have access to a gige cards in the ZC list, nobody can confirm or disprove what i posted. Here again as a reminder: Kernel | tput | sender-CPU | receiver-CPU | - 2.4.0-pre3 | 99MB/s | 87% | 23% | NSF||| | - 2.4.0-pre3 | 86MB/s | 100% | 17% | SF ||| | - 2.4.0-pre3 | 66.2 | 60% | 11% | +ZC| MB/s || | - 2.4.0-pre3 | 68 | 8% | 8% | +ZC SF| MB/s || | - Just ignore the CPU readings, focus on throughput. And could someone plese post results? In the spirit of the socratic method :) ;- Is your gige card based on Alteon? Yes, sir, it is. To be precise: ** Sender: SMP-PII-450Mhz, ASUS m/board; 3com version of acenic - 1M version ** receiver: same hardware; acenic alteon card - 1M version How does ZC/SG change the nature of the packets presented to the NIC? what do you mean? I am _sure_ you know how SG/ZC work. So i am suspecting more than socratic view on life here. Could be influence from Aristotle;- How well does the NIC do with that changed nature? Hard question to answer ;- I havent done any analysis at that level cheers, jamal - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
