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| Who | What | When |
|---|---|---|
| *** | m0unds_ has quit IRC (Ping timeout: 246 seconds)
m0unds_ has joined #arpnetworks | [01:11] |
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| mercutio | woot, got a 10x improvement in guest to host network performance | [02:12] |
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| mercutio | http://man7.org/linux/man-pages/man7/lvmcache.7.html
has anyone seen this before? | [04:10] |
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| *** | Guest5445 is now known as qbit | [06:40] |
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| mercutio | acf_: i am trying to access your smokeping. did you disable it for external access?
hmmm.. also your / exposes more than it should, but loads. | [19:23] |
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| m0unds | seems there's some congestion tonight | [20:51] |
| mercutio | yeh
on level3 can you do a mtr? | [20:54] |
| m0unds | yea, it's the return path | [20:55] |
| mercutio | i'm trying to track it down, but i reckon it's level3 | [20:55] |
| m0unds | it is | [20:55] |
| mercutio | it's really bad to my uk server. | [20:55] |
| m0unds | it's ugly
haha i'm seeing 60ms +/- 150 | [20:55] |
| mercutio | oh i just saw loss, and throughput issues
udp loss was higher than icmp loss but latency seemed normal but throughput seemed even worse than the udp loss i just got a vultr vm that's on level3 there's only one location in the US that routes via level3 from arp, most are ntt | [20:55] |
| m0unds | yeah, udp loss is gross | [20:57] |
| mercutio | what's your ip? | [20:57] |
| m0unds | like 50+%
arp IP? | [20:57] |
| mercutio | oh wow i didn't see it that bad before
nah ip you're coming from | [20:57] |
| m0unds | 73.26.90.138
http://pastebin.com/HUZS2VD0 | [20:57] |
| mercutio | yeah it loosk strange | [20:58] |
| m0unds | not as bad that run | [20:59] |
| mercutio | it's up and down a lot | [20:59] |
| m0unds | yeah | [20:59] |
| mercutio | that's with -u? | [20:59] |
| m0unds | yeah
on the bottom, forgot to redo the top | [20:59] |
| mercutio | yeah do icmp
it's bloody hard to read with all that hop alternating it seems you're not getting loss just latency from that though and from my mtr from arp to you it's the same it actually looks like comcast issue in this instance :/ | [20:59] |
| m0unds | looked largely the same | [21:00] |
| mercutio | yeah just trying to track down wehre it's happening
try doing 500 of them i realise it takes nearly 10 minutes :) but if there's a couple of percent loss or something it shows it up better | [21:01] |
| m0unds | well, there's nearly always loss at any time of the day on level3 w/icmp | [21:02] |
| mercutio | yeah on those earlier hops | [21:02] |
| m0unds | that's been my experience w/them forever | [21:02] |
| mercutio | it's whether it carries through | [21:02] |
| m0unds | i don't tend to have any loss at the destination, just along the path | [21:02] |
| mercutio | but ssh is laggy? | [21:03] |
| m0unds | but when i mentioned congestion, i saw a lot of loss. it seems to just be high latency now with no loss
it isn't | [21:03] |
| BryceBot | That's what she said!! | [21:03] |
| m0unds | BryceBot: no | [21:03] |
| BryceBot | Oh, okay... I'm sorry. 'it isn't' | [21:03] |
| mercutio | i'm getting good speeds from this level3 connecting vultr vm :(
ahh ok ssh wasn't laggy it seemed to uk for my "cl" program but i was getting really bad throughput starting around 6 hours ago i updated my kernels and got some speed boost in general http://uk.meh.net.nz/cgi-bin/smokeping.cgi?target=Curl.chi i should fix the naming that's la.meh.net.nz http://uk.meh.net.nz/cgi-bin/smokeping.cgi?target=meh.lameh but ping has been ok and loss isn't that high | [21:03] |
| m0unds | http://pastebin.com/BNiUsqcP | [21:06] |
| mercutio | comcast's routing is changing a lot grr :/
what throughput do you get atm? it seems it's going via los angeles or denver | [21:06] |
| m0unds | yea, it changes depending on time of day
sometimes it's direct abq > lax | [21:08] |
| mercutio | it changes within the trace | [21:08] |
| m0unds | sometimes it's denver > lax | [21:08] |
| mercutio | but that may be the jitter | [21:08] |
| m0unds | route change adds 10ms to ping but that's it
throughput is nearly always the same | [21:08] |
| mercutio | and it's still ok? | [21:08] |
| m0unds | yep | [21:08] |
| mercutio | hmm damnit
so that's different to the other issue :/ | [21:09] |
| m0unds | actually nope
it just tanked was going 1.2MB/sec, dropped to 400KB/sec that's pretty slow both times | [21:09] |
| mercutio | yeah that's more like wha ti been seeing
except lower because it's from uk | [21:10] |
| m0unds | well, here | [21:10] |
| mercutio | higher ping makes loss worse | [21:10] |
| m0unds | http://pastebin.com/3HhgkHDa
two local hops from arp > comcast are gross | [21:10] |
| mercutio | http://pastebin.com/9FhM7qHX | [21:10] |
| m0unds | yeah, that same 150-200ms "worst" measure is in the same spot as mine
5 & 6 | [21:11] |
| mercutio | yaeh hard to know if that's deprirotisiation or not
the latency to hop 5 for me is going hmm bi'm still running my download heh average speed 49305 bytes, current speed 45476 it was going 80k/sec before anyway why's it fine with this vultr vm grr by fine i mean 7.6mb/sec oh shit | [21:11] |
| m0unds | ? | [21:15] |
| mercutio | it's coming in from vultr via nlayer
i wonder if that has any bearing oh and now it's showing loss on last hop and on mzima pings heh | [21:15] |
| m0unds | did you stop your dl? | [21:16] |
| mercutio | nope
dl slowded down its' getting slower nad slower | [21:16] |
| m0unds | funky | [21:16] |
| mercutio | 27k/sec now | [21:16] |
| m0unds | wow | [21:16] |
| mercutio | yeah i know it's weirdly slow
and how does 6% icmp loss fit in with that? with 7.6mb/sec damnit i have to wait for dns ttl :( this is making no sense so there's packet loss from la to miami but throughput is good and the packet loss starts at gtt in san jose and throughput is good in both directions maye it's bursty | [21:16] |
| heh " curl -q http://weallsee.net/testspeed | sh
" is convenient but it feels dirty just running stuff downloaded off the internet it could be anyhting | [21:37] | |
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| m0unds: i'm setting high jitter to you from jp.meh.net.nz over ntt too
so it may be your path to arp or within comcast's netowrk | [22:00] | |
| m0unds | i'm loading my connection up quite a bit
atm | [22:01] |
| mercutio | ahh ok
maybe that's it then i'm trying to get my systems better organised for pushing smokeping etc :) | [22:01] |
| mnathani_ | mercutio: what os are most of your vultr vps? | [22:08] |
| mercutio | ubuntu
one is arch if there was arch auto provisioning they'd all be arch i've just shifted them all to custom kernel though | [22:09] |
| mnathani_ | any performance benefits? | [22:09] |
| mercutio | a little
to the kernel i'm not sure why :) i did the kernel when i was trying to debug guest-host kvm performance at home Startup finished in 944ms (kernel) + 491ms (userspace) = 1.435s that's sj Startup finished in 948ms (kernel) + 732ms (userspace) = 1.681s and that's my home vm home vm is ubuntu and tcp performance went up a little | [22:09] |
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| acf_ | mercutio: hmm, haven't touched the smokeping config
probably just congestion or something huh. it's acting funny for me too [....] Starting latency logger daemon: smokeping >:( all of the smokeping things are blocking on something | [23:26] |
| huh. that was really weird
seems that smokeping was blocking on DNS resolution both the CGI and the service | [23:33] | |
| mercutio | damn | [23:36] |
| i wonder why | [23:45] | |
| oh it didnt' seem to lose data?
cool 4.2.2.1 is screwed from about 2pm your time aare you pdt? hmm and phoenix.acfsys.net is that a box you can trace from? oh it's a tunnel or something | [23:55] | |
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