[Ninux-Wireless] tinc CPU optimization
Antonio Quartulli
ordex a autistici.org
Dom 3 Lug 2011 14:14:09 CEST
On dom, lug 03, 2011 at 01:57:00 +0200, Gioacchino Mazzurco wrote:
> senza tinc la configurazione rimane uguale ma il traffico al posto di
> passare dal tunnel via internet passa solo attraverso i link wireless
scusa e come fai a confrontare i due valori se li fai passare da
infrastrutture diverse?
on puoi fare un test fra gli stessi endpoint peròpassando attraverso
internet? se i due si ragigungono per connettersi con tinc potranno
anche raggiungersi per far connettere iperf, no?
>
> Il 03 luglio 2011 13:51, Antonio Quartulli <ordex a autistici.org> ha scritto:
> > On dom, lug 03, 2011 at 01:48:37 +0200, Gioacchino Mazzurco wrote:
> >> il test e' sempre PC( iperf -c ) <-- cavo lan --> Piconstation (
> >> btman-adv + tinc )<-- tinc ---> PC( batman-adv + tinc + iperf -s)
> >
> > anche senza TINC la configurazione rimane uguale? scusa ma non ho capito
> > questo daalle mail precedenti
> >
> >>
> >> >usa un vincolo temporale o quantitativo, sti valori sono troppo
> >> >deviati..
> >>
> >> quei test non sono fatti in parallelo sono fatti in modo sequenziale
> >> quindi volta per volta c'e' ne e' attivo solo uno
> >>
> >> Il 03 luglio 2011 13:40, Darkman <darkman a darkman.it> ha scritto:
> >> > Magari se scegliessi un test "unico" sarebbe anche meglio,
> >> > usa un vincolo temporale o quantitativo, sti valori sono troppo
> >> > deviati..
> >> > Se non mi dicessi della CPU a palla, guardando sta roba ti direi che è
> >> > congestione..
> >> >
> >> > Il giorno 03 luglio 2011 13:31, Gioacchino Mazzurco <gmazzurco89 a gmail.com>
> >> > ha scritto:
> >> >>
> >> >> altra serie di test
> >> >>
> >> >> [ 4] 0.0-18.8 sec 384 KBytes 167 Kbits/sec
> >> >> [ 4] 0.0-17.5 sec 384 KBytes 180 Kbits/sec
> >> >> [ 4] 0.0-20.0 sec 384 KBytes 157 Kbits/sec
> >> >> [ 4] 0.0-21.1 sec 384 KBytes 149 Kbits/sec
> >> >> [ 4] 0.0-23.5 sec 512 KBytes 178 Kbits/sec
> >> >> [ 4] 0.0-32.3 sec 384 KBytes 97.3 Kbits/sec
> >> >> [ 4] 0.0-20.8 sec 384 KBytes 151 Kbits/sec
> >> >> [ 4] 0.0-27.7 sec 256 KBytes 75.8 Kbits/sec
> >> >> [ 4] 0.0-21.8 sec 256 KBytes 96.3 Kbits/sec
> >> >> [ 4] 0.0-14.3 sec 512 KBytes 294 Kbits/sec
> >> >> [ 4] 0.0-14.0 sec 512 KBytes 299 Kbits/sec
> >> >> [ 4] 0.0-37.6 sec 512 KBytes 112 Kbits/sec
> >> >> [ 4] 0.0-18.7 sec 512 KBytes 224 Kbits/sec
> >> >> [ 4] 0.0-21.3 sec 384 KBytes 148 Kbits/sec
> >> >> [ 4] 0.0-17.9 sec 640 KBytes 293 Kbits/sec
> >> >> [ 4] 0.0-24.8 sec 512 KBytes 169 Kbits/sec
> >> >> [ 4] 0.0-23.5 sec 512 KBytes 178 Kbits/sec
> >> >> [ 4] 0.0-16.4 sec 384 KBytes 192 Kbits/sec
> >> >> [ 4] 0.0-21.4 sec 384 KBytes 147 Kbits/sec
> >> >>
> >> >> ho spento dnsmasq che non serviva a niente e andiamo di poco ma meglio
> >> >>
> >> >> Il 03 luglio 2011 13:16, Darkman <darkman a darkman.it> ha scritto:
> >> >> > Il sintomo è abbastanza chiaro, ma dubito sia colpa della CPU o meglio,
> >> >> > secondo me qualcosa
> >> >> > è stata scritta male, 100Kbps sono davvero ridicoli. A maggior ragione
> >> >> > quando ste cpu hanno anche qualche set dedicato
> >> >> > alla crittografia simmetrica...
> >> >> >
> >> >> > Il giorno 03 luglio 2011 13:04, Gioacchino Mazzurco
> >> >> > <gmazzurco89 a gmail.com>
> >> >> > ha scritto:
> >> >> >>
> >> >> >> ma il problema sembra proprio l'eccessivo utilizzo di cpu per la vpn
> >> >> >> perche' stando in ssh sulla picostation mentre c'e' traffico che passa
> >> >> >> sulla vpn diventa completamente unresponsive non sente nemmeno ctrl+c
> >> >> >> sulla shell... quando il traffico finisce mi esegue tutto quello che
> >> >> >> gli avevo mandato nel fratempo
> >> >> >>
> >> >> >> Il 03 luglio 2011 13:01, Gioacchino Mazzurco <gmazzurco89 a gmail.com> ha
> >> >> >> scritto:
> >> >> >> >>Hai la possibilità di usare una CPU + potente (tincare dal PC)?
> >> >> >> >
> >> >> >> > dovrei installarmi anche batman-adv sul pc...
> >> >> >> >
> >> >> >> > Il 03 luglio 2011 12:58, Darkman <darkman a darkman.it> ha scritto:
> >> >> >> >> E' chiaro che non può essere il tuo upstream,
> >> >> >> >> ma sei certo che il collo di bottiglia non sia nella capacità di sta
> >> >> >> >> rete
> >> >> >> >> mesh tunnellata?
> >> >> >> >> Hai provato a lanciare 2 iperf in parallelo?
> >> >> >> >> Hai la possibilità di usare una CPU + potente (tincare dal PC)?
> >> >> >> >>
> >> >> >> >>
> >> >> >> >> Il giorno 03 luglio 2011 12:34, Gioacchino Mazzurco
> >> >> >> >> <gmazzurco89 a gmail.com>
> >> >> >> >> ha scritto:
> >> >> >> >>>
> >> >> >> >>> la picostation a e la z sono la stessa picostation... dalla
> >> >> >> >>> picostation a posso decidere se accendere tinc e quindi far passare
> >> >> >> >>> traffico mesh su internet oppure se usare solo i link wireless
> >> >> >> >>>
> >> >> >> >>> dal computer pocco decidere sia di usare la picostation come gw sia
> >> >> >> >>> di
> >> >> >> >>> usare il router adsl
> >> >> >> >>>
> >> >> >> >>> le casistiche quindi sono 3
> >> >> >> >>>
> >> >> >> >>> iperf via internet senza tinc >500KB/s
> >> >> >> >>> iperf via mesh senza tinc ~ 20Kb/s
> >> >> >> >>> iperf via mesh tunnellata su internet con tinc ~100Kb/s
> >> >> >> >>>
> >> >> >> >>> Il 03 luglio 2011 12:27, Darkman <darkman a darkman.it> ha scritto:
> >> >> >> >>> > Fammi capire:
> >> >> >> >>> > - tra le tua pico(A) e quella(Z) con l'adsl ci sono diversi nodi
> >> >> >> >>> > e
> >> >> >> >>> > con
> >> >> >> >>> > iperf
> >> >> >> >>> > hai risultati di 20Kbps (A->Z) in L3 puro ? Mentre se usi tinc va
> >> >> >> >>> > a
> >> >> >> >>> > 100Kbps?
> >> >> >> >>> > - chi sono gli end-point tinc?
> >> >> >> >>> >
> >> >> >> >>> >
> >> >> >> >>> >
> >> >> >> >>> >
> >> >> >> >>> >
> >> >> >> >>> > Il giorno 03 luglio 2011 12:12, Gioacchino Mazzurco
> >> >> >> >>> > <gmazzurco89 a gmail.com>
> >> >> >> >>> > ha scritto:
> >> >> >> >>> >>
> >> >> >> >>> >> senza tinc praticamente non c'e' connettivita' ( a volte va ma
> >> >> >> >>> >> roba
> >> >> >> >>> >> tipo 20k perche' sono un sacco di op alcuni dei quali fanno
> >> >> >> >>> >> schifo...)
> >> >> >> >>> >>
> >> >> >> >>> >> se invece faccio iperf passando per internet senza tinc ottengo
> >> >> >> >>> >> risultati sempre sopra i 500KB/s
> >> >> >> >>> >>
> >> >> >> >>> >> Il 03 luglio 2011 12:01, Darkman <darkman a darkman.it> ha
> >> >> >> >>> >> scritto:
> >> >> >> >>> >> > Hai gia controllato i valori tra le 2 pico con e senza tinc?
> >> >> >> >>> >> >
> >> >> >> >>> >> >
> >> >> >> >>> >> > Il giorno 03 luglio 2011 11:45, Gioacchino Mazzurco
> >> >> >> >>> >> > <gmazzurco89 a gmail.com>
> >> >> >> >>> >> > ha scritto:
> >> >> >> >>> >> >>
> >> >> >> >>> >> >> iperf -c su computer che usa una picostation come gateway ->
> >> >> >> >>> >> >> Picostation con tinc <- adsl 8 megabit -> iperf --server su
> >> >> >> >>> >> >> eigenlab.org
> >> >> >> >>> >> >>
> >> >> >> >>> >> >>
> >> >> >> >>> >> >> Il 03 luglio 2011 11:33, Darkman <darkman a darkman.it> ha
> >> >> >> >>> >> >> scritto:
> >> >> >> >>> >> >> > 100kbps mi pare davvero troppo poco anche per quelle
> >> >> >> >>> >> >> > cessonanocpu.
> >> >> >> >>> >> >> > Come li hai ottenuti sti valori?
> >> >> >> >>> >> >> >
> >> >> >> >>> >> >> > Il giorno 03 luglio 2011 11:10, Gioacchino Mazzurco
> >> >> >> >>> >> >> > <gmazzurco89 a gmail.com>
> >> >> >> >>> >> >> > ha scritto:
> >> >> >> >>> >> >> >>
> >> >> >> >>> >> >> >> Ciao a tutti!
> >> >> >> >>> >> >> >>
> >> >> >> >>> >> >> >> Facendo dei test mi sono accorto che le vpn con tinc
> >> >> >> >>> >> >> >> installato
> >> >> >> >>> >> >> >> sui
> >> >> >> >>> >> >> >> nodi ci vanno max a 100k anche se la banda dell'adsl e'
> >> >> >> >>> >> >> >> molta
> >> >> >> >>> >> >> >> di
> >> >> >> >>> >> >> >> piu'... ho cominciato a cercare ed ho letto che la causa
> >> >> >> >>> >> >> >> e'
> >> >> >> >>> >> >> >> probabilmente la CPU che non ce la fa a fare encryption
> >> >> >> >>> >> >> >> decryption
> >> >> >> >>> >> >> >> piu' velocemente di cosi'
> >> >> >> >>> >> >> >>
> >> >> >> >>> >> >> >> leggendo il man di tinc ho trovato questo
> >> >> >> >>> >> >> >>
> >> >> >> >>> >> >> >> Cipher = cipher (blowfish)
> >> >> >> >>> >> >> >> The symmetric cipher algorithm used to encrypt
> >> >> >> >>> >> >> >> UDP
> >> >> >> >>> >> >> >> packets. Any cipher supported by OpenSSL is recognised.
> >> >> >> >>> >> >> >> Furâ€
> >> >> >> >>> >> >> >> thermore, specifying "none" will turn off
> >> >> >> >>> >> >> >> packet
> >> >> >> >>> >> >> >> encryption. It is best to use only those ciphers which
> >> >> >> >>> >> >> >> support
> >> >> >> >>> >> >> >> CBC mode.
> >> >> >> >>> >> >> >>
> >> >> >> >>> >> >> >> mettendo none dovrebbe essere disabilitata l' encryption e
> >> >> >> >>> >> >> >> quindi
> >> >> >> >>> >> >> >> avere piu' banda, il meccanismo degli host con il file con
> >> >> >> >>> >> >> >> la
> >> >> >> >>> >> >> >> chiave
> >> >> >> >>> >> >> >> pubblica continua a funzionare disabilitando la cifratura,
> >> >> >> >>> >> >> >> e
> >> >> >> >>> >> >> >> soprattutto bastera' aggiungere quell'opzione li oppure
> >> >> >> >>> >> >> >> bisogna
> >> >> >> >>> >> >> >> cambiare altre conf?
> >> >> >> >>> >> >> >>
> >> >> >> >>> >> >> >> _______________________________________________
> >> >> >> >>> >> >> >> Wireless mailing list
> >> >> >> >>> >> >> >> Wireless a ml.ninux.org
> >> >> >> >>> >> >> >> http://ml.ninux.org/mailman/listinfo/wireless
> >> >> >> >>> >> >> >>
> >> >> >> >>> >> >> >
> >> >> >> >>> >> >> >
> >> >> >> >>> >> >> > _______________________________________________
> >> >> >> >>> >> >> > Wireless mailing list
> >> >> >> >>> >> >> > Wireless a ml.ninux.org
> >> >> >> >>> >> >> > http://ml.ninux.org/mailman/listinfo/wireless
> >> >> >> >>> >> >> >
> >> >> >> >>> >> >> >
> >> >> >> >>> >> >> _______________________________________________
> >> >> >> >>> >> >> Wireless mailing list
> >> >> >> >>> >> >> Wireless a ml.ninux.org
> >> >> >> >>> >> >> http://ml.ninux.org/mailman/listinfo/wireless
> >> >> >> >>> >> >>
> >> >> >> >>> >> >
> >> >> >> >>> >> >
> >> >> >> >>> >> > _______________________________________________
> >> >> >> >>> >> > Wireless mailing list
> >> >> >> >>> >> > Wireless a ml.ninux.org
> >> >> >> >>> >> > http://ml.ninux.org/mailman/listinfo/wireless
> >> >> >> >>> >> >
> >> >> >> >>> >> >
> >> >> >> >>> >> _______________________________________________
> >> >> >> >>> >> Wireless mailing list
> >> >> >> >>> >> Wireless a ml.ninux.org
> >> >> >> >>> >> http://ml.ninux.org/mailman/listinfo/wireless
> >> >> >> >>> >>
> >> >> >> >>> >
> >> >> >> >>> >
> >> >> >> >>> > _______________________________________________
> >> >> >> >>> > Wireless mailing list
> >> >> >> >>> > Wireless a ml.ninux.org
> >> >> >> >>> > http://ml.ninux.org/mailman/listinfo/wireless
> >> >> >> >>> >
> >> >> >> >>> >
> >> >> >> >>> _______________________________________________
> >> >> >> >>> Wireless mailing list
> >> >> >> >>> Wireless a ml.ninux.org
> >> >> >> >>> http://ml.ninux.org/mailman/listinfo/wireless
> >> >> >> >>>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >> _______________________________________________
> >> >> >> >> Wireless mailing list
> >> >> >> >> Wireless a ml.ninux.org
> >> >> >> >> http://ml.ninux.org/mailman/listinfo/wireless
> >> >> >> >>
> >> >> >> >>
> >> >> >> >
> >> >> >> _______________________________________________
> >> >> >> Wireless mailing list
> >> >> >> Wireless a ml.ninux.org
> >> >> >> http://ml.ninux.org/mailman/listinfo/wireless
> >> >> >>
> >> >> >
> >> >> >
> >> >> > _______________________________________________
> >> >> > Wireless mailing list
> >> >> > Wireless a ml.ninux.org
> >> >> > http://ml.ninux.org/mailman/listinfo/wireless
> >> >> >
> >> >> >
> >> >> _______________________________________________
> >> >> Wireless mailing list
> >> >> Wireless a ml.ninux.org
> >> >> http://ml.ninux.org/mailman/listinfo/wireless
> >> >>
> >> >
> >> >
> >> > _______________________________________________
> >> > Wireless mailing list
> >> > Wireless a ml.ninux.org
> >> > http://ml.ninux.org/mailman/listinfo/wireless
> >> >
> >> >
> >> _______________________________________________
> >> Wireless mailing list
> >> Wireless a ml.ninux.org
> >> http://ml.ninux.org/mailman/listinfo/wireless
> >
> > --
> > Antonio Quartulli
> >
> > ..each of us alone is worth nothing..
> > Ernesto "Che" Guevara
> > _______________________________________________
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> >
> _______________________________________________
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--
Antonio Quartulli
..each of us alone is worth nothing..
Ernesto "Che" Guevara
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