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| Who | What | When |
|---|---|---|
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| robonerd | m0unds_ haha | [11:23] |
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| LLKCKfan | I was wanting to know if there is a way to find out why my computer is acting like it is on dailup when I am on cable and getting my full speed | [15:50] |
| mercutio | that's a very open ended question
is dns resolution slow? is it windows or linux or os x or what basically i'd check ping first, then check dns, then check cpu usage, then check hard-disk performance | [15:54] |
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| LLKCKfan | cdablre
It is cable windows ping is 0 | [16:27] |
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| brycec | Also what does this have to do with ARP Networks? | [16:46] |
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| mercutio | brycec: nothing really, but nothign else ios happening
but yeah it's probably a bit too far off-topic, and not generally intersting or anything | [19:33] |
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| LLKCKfan | Hello | [20:05] |
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| brycec | yeah mercutio, my thoughts exactly. | [20:12] |
| mercutio | i've been playing with zfs on ssd
is that general interest? it's still slower than btrfs or ext4 for read speeds :( | [20:13] |
| brycec | Under what OS? | [20:14] |
| mercutio | linux
i got 3x samsung evo 840 | [20:14] |
| brycec | So could just be the Linux ZFS implementation :P | [20:14] |
| mercutio | could be | [20:14] |
| brycec | (Fuse, right?) | [20:14] |
| mercutio | nope
it went past fuse ages ago | [20:14] |
| brycec | ah | [20:15] |
| mercutio | i'm at about 1.2 gigabytes/sec though
and i got it up to 1.4 gigabytse/sec before but ext4/btrfs on mdadm or on btrfs raid got up to 1.5 to 1.6gb/sec read speed | [20:15] |
| brycec | That seems faster than the bus should handle. | [20:15] |
| mercutio | bus should handle 2 gigabytes/sec
minus overheads | [20:15] |
| brycec | @wa 6gbps to gb/s | [20:15] |
| BryceBot | convert 6 Gb/s (gigabits per second) to gigabytes per second;0.75 GB/s (gigabytes per second);6×10^9 b/s (bits per second);750 MB/s (megabytes per second);= SATA revision 3.0 speed ( 6 Gb/s );~~ 1.2 × OC96 speed ( 4.977×10^9 b/s );~~ 1.2 × USB 3.0 speed ( 4800 Mb/s );information rate;[time]^(-1) [information];Time to transfer 1 gigabyte:, ->1.3 seconds, ->0.022 minutes;Time to transfer 1 terabyte:, ->1333 seconds, ->22 minutes | [20:15] |
| brycec | ^ | [20:16] |
| mercutio | this is 3 ssd's
each on 6 gigabit ports | [20:16] |
| brycec | Ahhh so 3*.75GB/s | [20:16] |
| mercutio | each ssd can do 500mb/sec+ on it's own | [20:16] |
| brycec | *its :p | [20:16] |
| mercutio | it's hard to benchmark though
being evos they have fast write at the beginning but not after writing more data | [20:16] |
| brycec | So secure erase every time? | [20:17] |
| mercutio | but in real world access you're not likely to write more than the fast speed often aynway
nah i'm not doing anything liek taht :/ i was mostly concerned about read speed aynway | [20:17] |
| brycec | heh | [20:17] |
| mercutio | but then i decided to compare linux kernel compile time | [20:18] |
| brycec | I've done that before :) | [20:18] |
| mercutio | and other such things
curiously lz4 is faster than non lz4 even on amazingly fast ssd's doing 100% cpu but basically zfs is slightly slower | [20:18] |
| brycec | 19s was my record (lvm mirror with 2 SATA3 SSDs that max at 500-600 read, -j12) | [20:18] |
| mercutio | but < 1 % with lz4 compression
and just over 1% without lz4 compression 19s to do what exactly? | [20:19] |
| brycec | make defconfig && make | [20:19] |
| mercutio | wow
what cpu speed was that? my kernel compile times went up at some point | [20:19] |
| brycec | Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz
and 16Gb | [20:20] |
| mercutio | but it's like 2:07 for zfs | [20:20] |
| brycec | *16GB RAM | [20:20] |
| mercutio | what
i'm on i7-4770 what does defconfig enable? i'm using my standard kernel i used to be just under 2 minutes but yeh if it's minor difference it doesn't really matter and lz4 uses up less space :) | [20:20] |
| brycec | No idea really... Just "defaults" as determined by Linus and firends. | [20:21] |
| mercutio | and it seems raidz gives good enough performance | [20:21] |
| brycec | *friends | [20:21] |
| mercutio | so i don't really need to use raid 10
because most things on linux don't do parallel i/o and raid10 doesn't really speed up serial i/o it just means that it doesn't slow down as much when doing parallel i/o but ssd's don't really slow down that much with parallel i/o anytway maybe it was an old kernel i used to have 15 minute compile times on a 486 i think | [20:21] |
| brycec | Wow really? My 486DX2 took 2 hours | [20:23] |
| mercutio | maybe i was imaginging things | [20:23] |
| brycec | (compiling some old 2.2 kernel, IDE drive...) | [20:23] |
| mercutio | weird
oh maybe it was 40 minutes, and then 15 minutes when i oh hangon this was 2.1 kernel like 2.1.110 so that looks like crica 98 | [20:23] |
| brycec | My 486 died when I moved :( | [20:24] |
| mercutio | damn
i going to see if it still compiles :/ it's not much gbigigger than current patches :/ | [20:24] |
| brycec | Good luck :) | [20:25] |
| mercutio | Makefile:160: arch/x86_64/Makefile: No such file or directory
ho hmm % ls -l arch/ alpha/ arm/ i386/ m68k/ mips/ ppc/ sparc/ sparc64/ i need a 32 bit distro | [20:25] |
| m0unds | i'm so used to using x64 arch that when i had to reimage something with a 32-bit cpu, i didn't have a compatible image for it | [20:41] |
| mercutio | i found some old distribution
i'm hoping i can extract binaries from it :) | [20:44] |
| m0unds | haha, good luck | [20:44] |
| mercutio | bin/zsh: Linux/i386 demand-paged executable (QMAGIC)
doesn't seem to want to chroot and run that :/ i assume that's a.out | [20:46] |
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TheHiTCH_ has joined #arpnetworks TheHiTCHO has quit IRC (Ping timeout: 240 seconds) | [22:29] | |
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