[Ninux-Wireless] tinc CPU optimization
Gioacchino Mazzurco
gmazzurco89 a gmail.com
Dom 3 Lug 2011 16:12:29 CEST
e' strano..
perche' io sto usando ipv6 per fare i test quindi il path mtu
discovery dovrebbe funzionare e in effetti riducendo l'mtu a 1280 e
disabilitando cipher ottengo un misero raddoppio della banda quando va
bene...
Il 03 luglio 2011 14:37, Darkman <darkman a darkman.it> ha scritto:
> Quello che va meglio :)
> Ce ne saranno una dozzina nel kernel, aggiungili.
> Così, a naso, vista la natura particolare del canale, un algo abbastanza
> tollerante alle perdite/timeout.
> Ma questo solo per capire sa cambia qualcosa o siamo sempre con gli stessi
> valori..
>
> Il giorno 03 luglio 2011 14:23, Gioacchino Mazzurco <gmazzurco89 a gmail.com>
> ha scritto:
>>
>> non so quale usa di default tu quale mi consigli di usare?
>>
>> Il 03 luglio 2011 14:18, Darkman <darkman a darkman.it> ha scritto:
>> > Bene, ora puoi ripetere le prove cambiando l'algoritmo di controllo di
>> > congestione sul client iperf.
>> > Cosa stai usando ora? Reno?
>> >
>> > Il giorno 03 luglio 2011 14:09, Gioacchino Mazzurco
>> > <gmazzurco89 a gmail.com>
>> > ha scritto:
>> >>
>> >> altri test fissando la quantita'
>> >>
>> >> [ 4] 0.0-62.2 sec 2.00 MBytes 270 Kbits/sec
>> >> [ 4] 0.0-55.3 sec 2.00 MBytes 304 Kbits/sec
>> >> [ 4] 0.0-64.2 sec 2.00 MBytes 261 Kbits/sec
>> >> [ 4] 0.0-58.8 sec 2.00 MBytes 285 Kbits/sec
>> >> [ 4] 0.0-99.6 sec 2.00 MBytes 169 Kbits/sec
>> >> [ 4] 0.0-96.4 sec 2.00 MBytes 174 Kbits/sec
>> >> [ 4] 0.0-89.8 sec 2.00 MBytes 187 Kbits/sec
>> >> [ 4] 0.0-66.4 sec 2.00 MBytes 253 Kbits/sec
>> >> [ 4] 0.0-99.9 sec 2.00 MBytes 161 Kbits/sec
>> >> [ 4] 0.0-88.1 sec 2.00 MBytes 190 Kbits/sec
>> >>
>> >>
>> >> Il 03 luglio 2011 13:57, Gioacchino Mazzurco <gmazzurco89 a gmail.com> ha
>> >> scritto:
>> >> > senza tinc la configurazione rimane uguale ma il traffico al posto di
>> >> > passare dal tunnel via internet passa solo attraverso i link wireless
>> >> >
>> >> > 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
>> >> >> _______________________________________________
>> >> >> 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
>>
>
>
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