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| Who | What | When | |
|---|---|---|---|
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| RandalSchwartz | how do I interpret the performance numbers on FreeBSD "top" with respect to ARC?
as in ARC: 15G Total, 2492M MFU, 11G MRU, 1936K Anon, 527M Header, 1485M Other | [14:10] | |
| .... (idle for 17mn) | |||
| ahh - some googling is revealing things
MFU = most frequently used. MRU = most recently used. ... http://www.racktopsystems.com/adaptive-replacement-cache-arc-adapting-to-your-needs/ | [14:28] | ||
| looks like my ghost rates are under 1%. Apparently the RAM-based ARC is doing most of what I need.
and 91% of my hits are in the MFU cache | [14:36] | ||
| *** | sjackso has left | [14:41] | |
| ..... (idle for 21mn) | |||
| dne | RandalSchwartz: try sysutils/zfs-stats from ports, for more verbose ZFS stats | [15:02] | |
| mercutio | randal: heh
RandalSchwartz: maybe try the check for sync writes program i can't rmeember what it is zilstat ? | [15:11] | |
| merc2 | http://www.richardelling.com/Home/scripts-and-programs-1/zilstat
i keep forgetting i can't paste | [15:12] | |
| mercutio | why would tmux/weechat show a block cursor when i do middle mouse button, and i have to press enter to get out of it? | [15:13] | |
| oh, shift middle click fixes it
it seems i gained "mouse support" | [15:23] | ||
| RandalSchwartz | Yeah - I was looking at zfs-stats
that's where I got my ghost rates | [15:31] | |
| mercutio | zilstat shows sync writes, but looks like it doesn't work on older freebsd at least as dtrace functionality is missing.
things like mail tend to have sync writes vfs.zfs.l2arc_noprefetch that's the setting that disables storing streams in l2arc ie sequential disabling that may help if you're getting low usage. vfs.zfs.l2arc_write_max vfs.zfs.l2arc_write_boost and increasing those the first is speed of writing in general, the second is when pool isn't yet full err l2arc isn't yet full. | [15:34] | |
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| RandalSchwartz | RMS on "don't use uber": https://stallman.org/uber.html | [16:23] | |
| mercutio | drivers can find out who the passenger is? | [16:26] | |
| BryceBot | That's what she said!! | [16:26] | |
| staticsafe | yes, Uber tells the driver your first name | [16:28] | |
| mercutio | this does ssound scary | [16:29] | |
| staticsafe | ...how? | [16:29] | |
| mercutio | drivers can find out who the passenger is? /articles/2014/03/28/uber-s-biggest-problem-isn-t-surge-pricing-what-if-it-s-sexual-harassment-by-drivers.html
erk how'd that break http://www.thedailybeast.com/articles/2014/03/28/uber-s-biggest-problem-isn-t-surge-pricing-what-if-it-s-sexual-harassment-by-drivers.html ok it seemss it varies by location maybe and you need it in new york, at least. | [16:29] | |
| staticsafe | hm?
need what | [16:34] | |
| mercutio | full name for some trip report or something | [16:38] | |
| ....... (idle for 30mn) | |||
| RandalSchwartz | Yes, they know my first name.
They often say "Randal?" when picking me up makes sense. | [17:08] | |
| mercutio | i'm getting tempted to go to 32gigabit network | [17:09] | |
| RandalSchwartz | But I also know their first name too. And their license plate number and make/model of car. | [17:09] | |
| mercutio | i really don't see what benefit there would be :) | [17:09] | |
| RandalSchwartz | pretty essential to getting picked up | [17:09] | |
| mercutio | ebay encourages spending money | [17:09] | |
| RandalSchwartz | amazon doubly so | [17:09] | |
| mercutio | it's like $160 US pre shipping.
amazon is handy, if they screw up shipping then they tend to refund it. or take 20% off the item price. | [17:10] | |
| staticsafe | yep | [17:19] | |
| mercutio | i was reading servethehome before, and apparently someone was selling 18 port 40gigabit ethernet switches for < $1000
but most 40 gigabit ethernet cards are like $200 err more than that prob | [17:25] | |
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| acf_ | arrgh | [19:10] | |
| *** | dj_goku has quit IRC (Read error: No route to host) | [19:10] | |
| acf_ | I think the Ethernet card in my laptop broke
[ 29.231153] e1000e 0000:00:19.0 eth0: Error reading PHY register it won't send or receive packets anymore ethtool says the link isn't detected | [19:11] | |
| mercutio | weird
does it have pxe boot? if so enter setup in bios on startup and try changing the timeout value for it (to reset eeprom settings) | [19:13] | |
| acf_ | wow. that worked
mercutio: thanks | [19:21] | |
| mercutio | yeah not the most obvious thing to do :) | [19:28] | |
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dj_goku has joined #arpnetworks dj_goku has quit IRC (Changing host) dj_goku has joined #arpnetworks | [19:40] | |
| m0unds | which intel PHY is it out of curiosity? | [19:58] | |
| mercutio | it looks older than the card i had an issue with :) | [19:58] | |
| m0unds | there's a hardware issue w/the 82574L card that can cause it to enter a weird state
card/module/whatever | [19:59] | |
| mercutio | reading intel bug reports on ethernet cards is scary
then you read the broadcom and they're just as bad. my intel ethernet screws up regularly on my motherboard :( | [20:00] | |
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| acf_ | m0unds: 00:19.0 Ethernet controller: Intel Corporation 82566MM Gigabit Network Connection (rev 03)
(from lspci) | [20:22] | |
| mercutio | that sounds old | [20:28] | |
| mkb | so connecting to a friends server in NY from ARP goes through india:
http://www.martinbrandenburg.com/2015/paste/2015011002.txt | [20:29] | |
| mercutio | that's strange
looks like issue with AS9498 oh it's digitalocean's fault :) most likely | [20:29] | |
| mkb | yeah it's them
I told him to tell support about that | [20:31] | |
| mercutio | wow 9498 has a lot of routes.
but yeah it's advertised via airtel in india as well as via ntt but airtel is over coresite. and arp prefers peering to transit routes. | [20:32] | |
| mkb | does HE's LG require javascript... | [20:33] | |
| mercutio | no idea
i'm using arp's looking glass | [20:33] | |
| mkb | apparently
arp has a lg? | [20:34] | |
| mercutio | http://lg.arpnetworks.com/cgi-bin/bgplg?cmd=show+ip+bgp&req=104.131.193.156
yeh i set it up :) | [20:34] | |
| mkb | return is via NTT
openbsd nice | [20:34] | |
| mercutio | yeah from new zealand it's advertised via ntt
which i checked it against we get a few asian routing issues because asia is closer hmm actually i think it could be more complex than that. that's not actually peering i think | [20:34] | |
| mkb | what? | [20:40] | |
| *** | relrod has joined #arpnetworks | [20:40] | |
| mercutio | i think it's transit although i have no idea who clear thought is
but i think r1 was the peering server | [20:40] | |
| mkb | yeah I was wondering that
not many paths from ARP to India even to 8.8.8.8 goes through them | [20:40] | |
| mercutio | so it's that it needs to be prepended by digitalocean
for india at california | [20:42] | |
| mkb | prepended? what's that mean? I don't know much about ARP
s/ARP/BGP/ | [20:42] | |
| BryceBot | <mkb> prepended? what's that mean? I don't know much about BGP | [20:43] | |
| mercutio | well quite a few asian providers have peering in california
you see on the looking glass it shows 3 numbers under aspath ? | [20:43] | |
| mkb | yeah | [20:43] | |
| mercutio | if another path has 4 numbers, it'll prefer the path with 3 numbers
so if you want to deprefer a route you add in an extra number | [20:43] | |
| mkb | okay but that's not necessarily best | [20:43] | |
| mercutio | so like 62567 could prepend their asn, so that it showed as 11799 9498 62567
err so like 62567 could prepend their asn, so that it showed as 11799 9498 62567 62567 well the other thing to do is advertise more specific routes, like you can advertise a /24 instead of a /19 so they may be using one of the /24s of /19 in india and so advertising there or they may just be trying to improve their indian routing. if they're trying to improve their indian routing, they can also tell 9498 not to advertise their routes in california (but only in asia) i dunno who "clear thought" is | [20:44] | |
| mkb | if they're at the front that means ARP peers though right? | [20:46] | |
| mercutio | arp gets transit through them it appears | [20:46] | |
| mkb | transit. that's the right word | [20:46] | |
| mercutio | err
creative thought http://bgp.he.net/AS11799 | [20:46] | |
| *** | dj_goku has quit IRC (Ping timeout: 264 seconds) | [20:47] | |
| mercutio | doesn't help me figure out who they are | [20:47] | |
| mkb | so BGP (I knew this but I wasn't sure how it interacted with routing) doesn't know about pipe size or latency | [20:47] | |
| mercutio | http://www.thebgpcollective.com/
it seems to be in regard to this yeah bgp doesn't know about pipe size or latency about the best you can do is use communities. basically community is like a tag, so you can say where a route comes from or what you want to do with a route | [20:47] | |
| mkb | well do you advertise from your AS at one router in india and at another in new york?
but if they're different subnets they're different paths to each subnet so it's route to subnet not route to AS? | [20:49] | |
| mercutio | it's route to subnet yes
you can advertise your ip addresses from multiple asn's in theory. | [20:49] | |
| mkb | AS is just a tag so you can see who it is? | [20:49] | |
| mercutio | yeah.
it's pretty simple really, that's the issue. | [20:49] | |
| mkb | ok and communities help how? | [20:50] | |
| mercutio | because routing can be complicated.
well like different providers have different ways you can tag your traffic http://www.us.ntt.net/support/policy/routing.cfm | [20:50] | |
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| mercutio | so like ntt for exam,ple, you can specifiy community of 65403:<asn> and it will prepend you in north america
these are not standardised at all. | [20:50] | |
| mkb | okay so that's like you said DO should tell airtel not to advertise in california. they'd tag with a community? | [20:51] | |
| mercutio | well bgp collectgive is a weird thing
from what i recall, it's to give peering in more locations or such but yeah, digitalocean may give a community to not advertise to bgp collective from airtel. but airtel would have to set that up to work. and publish a list airtel have a looking glass :) | [20:51] | |
| mkb | mercutio, can you see other routes in the LG? | [20:57] | |
| mercutio | from 9498?
or from creative thought? or in general? | [20:57] | |
| mkb | no like the one through NTT that's longer? | [20:57] | |
| mercutio | nah
it's one of the anonying things atm :) actually it shouldn't even be longer. | [20:57] | |
| BryceBot | That's what she said!! | [20:58] | |
| mercutio | digitalocean are directly connected | [20:58] | |
| mkb | http://lg.arpnetworks.com/cgi-bin/bgplg?cmd=show+ip+bgp+as&req=62567 ?
2914 is NTT but the 104.131.192.0/19 route isn't through them | [21:00] | |
| mercutio | yeah it's a local preference issue
local preference overrides length see how lpref says 150 rather than 100 | [21:02] | |
| mkb | no the IP of where I'm connecting isn't advertised through NTT | [21:03] | |
| mercutio | http://lg.arpnetworks.com/cgi-bin/bgplg?cmd=show+ip+bgp+transit-as&req=11799
there's a /lot/ of routes from 9498 https://lg.airtel.in/ there's an informative community of 93 i have no idea what 93 means :) | [21:03] | |
| mkb | that thing doesn't seem to work very well | [21:06] | |
| mercutio | it's a horrible web site tbut it works for me
so airtel have peering at nyiix.net | [21:06] | |
| mkb | oh when it says system error it's lying | [21:07] | |
| mercutio | and provide transit from india to there.
yes. | [21:07] | |
| mkb | lieing* | [21:07] | |
| mercutio | it's terrible is't it ;) | [21:07] | |
| mkb | lying
I should learn to spell | [21:07] | |
| mercutio | ok so from india it's good route
but from los angeles it goes via india :) so airtel shouldn't advertise routes from nyix in los angeles | [21:08] | |
| mkb | so end result is that airtel is probably doing something wrong | [21:08] | |
| mercutio | yes
and arp is preferring it | [21:09] | |
| mkb | oh I was going on about IP here http://lg.arpnetworks.com/cgi-bin/bgplg?cmd=show+ip+bgp+as&req=62567 not being listed as from NTT. but those last two from NTT are completely different
so the others _are_ from NTT but I can't see that on lg like you said right? | [21:09] | |
| mercutio | yeah because the later ones probably aren't advertised to airtel | [21:10] | |
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| mercutio | mkb: i managed to reproduce on a uk vm
http://pastebin.com/DjApJrSC uk to new york should be much less ping than that so yeah that may help convince digitalocean that it's their fault :) or err airtel's fault. | [21:31] | |
| mkb | relrod, ^^ | [21:33] | |
| relrod | mercutio: I'll update the ticket to include that (the DO VM is mine) | [21:33] | |
| mercutio | ok
it's easy to blame the other end when you don't have other cases :) | [21:33] | |
| mkb | but yeah thanks | [21:34] | |
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