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2018-08-29 00:00:32
Fireduck
HexUtil.getHexString
2018-08-29 00:00:47
mjay
Thanks @Fireduck!
2018-08-29 00:01:33
Rotonen
dunno if you're actually maxing out your CPUs with the checks there, or if there's some inherent penalty in juggling more threads
2018-08-29 00:02:16
Rotonen
or if i'm just not able to think clearly on what's actually going on in an E7 system with 4(?) NUMA nodes in a wide multithreading seek
2018-08-29 00:03:26
Rotonen
or you're running with post-spectre patches?
2018-08-29 00:03:54
Rotonen
shame TSX-NI was an even worse idea, that'd have been brilliant for snowblossom
2018-08-29 00:05:09
mjay
No I avoided the patches
2018-08-29 00:05:16
mjay
Its a private network anyway
2018-08-29 00:06:02
Rotonen
i'm post-patch so could be jamming more threads in there is just some weird way to force a performance penalty mitigation
2018-08-29 00:06:45
Rotonen
not sure how to figure out either on a trivial time / effort scale, so just gonna leave it at the "start with 2x hyperthreads and also try +/- 50% of that"
2018-08-29 00:07:17
mjay
I´ll try a few more numbers and see how well it performs
2018-08-29 00:07:41
Rotonen
if one is to believe intel sales people, the E7 just delivers consistently all the time no matter what you throw at it :stuck_out_tongue:
2018-08-29 00:08:00
Clueless
is testing out two factor authentication keys before implementing them in anything security concerning
2018-08-29 00:09:02
Rotonen
@mjay sorta also considering the miner should just tune the thread count on its own as it can just adjust the pool size at runtime
2018-08-29 00:09:14
Rotonen
but, effort
2018-08-29 00:09:26
mjay
so, 40 Threads = 2.1MH/s
2018-08-29 00:09:46
mjay
60 Threads = 2.5MH/s
2018-08-29 00:09:53
mjay
80 and 160 3.1MH/s
2018-08-29 00:09:53
Rotonen
that's also funnily in line with the old intel promise of "up to 50% gains with hyper threading"
2018-08-29 00:10:39
mjay
320 and we are down to 3.0MH/s
2018-08-29 00:10:52
Rotonen
i'd guess some os scheduling overhead also kicks in then
2018-08-29 00:11:17
Rotonen
might mitigate that with silly experimental process schedulers
2018-08-29 00:11:22
mjay
all the threads fill up the caches, that can do a penalty
2018-08-29 00:12:30
Rotonen
and also if the JVM has to do more, that's also in the way
2018-08-29 00:13:00
Rotonen
and as it's all about the memory seeks, just the per thread data structures and juggling them is my primary guess for why it starts dropping off
2018-08-29 00:14:41
Rotonen
@mjay how high are you setting xmx? i had the best results on the 128GB field with xmx 220g, somehow suspect that to have something to do with the GC and trigger densities thereof
2018-08-29 00:15:11
mjay
@Rotonen Its still at default, I use a ramdisk
2018-08-29 00:15:35
Rotonen
oh, well, that's a different ballgame, yeah
2018-08-29 00:15:52
Rotonen
but nicely saves you the load every time you muck with it
2018-08-29 00:16:15
Rotonen
heh, make that a zram block device? :stuck_out_tongue:
2018-08-29 00:16:32
mjay
just a regular tmpfs mount :wink:
2018-08-29 00:18:02
Rotonen
i'll actually put that onto my wizard tomorrow, that's a rather neat trick to provision dedicated ram, and to enable quick mucking around with, and to not have to bother with jvm flags
2018-08-29 00:18:18
Rotonen
will have to bother to benchmark that myself as well first, though
2018-08-29 00:19:31
mjay
Can we maybe get a mmap / mlock combination?
2018-08-29 00:19:45
mjay
This will just lock it in system cache
2018-08-29 00:19:58
Rotonen
that'd also be rather nice as then one would not have to figure out any java openmpi stuff
2018-08-29 00:20:19
Rotonen
should work really nicely with the chunked field and arktika
2018-08-29 00:20:41
Rotonen
as in you can guaranteedly lock something per numa node and guaranteedly run arktika miners per core etc.
2018-08-29 00:21:32
fydel
@mjay try with memfield instead of ramdisk. i had a gain of 15-20%.
2018-08-29 00:22:02
Rotonen
@fydel did you try overprovisioning the heap size?
2018-08-29 00:22:55
fydel
yep. that also gave 1-2%. i cant remember exactly.
2018-08-29 00:23:14
Rotonen
i've had 0% .. 5% depending
2018-08-29 00:23:15
fydel
not mining on ec2 anymore.
2018-08-29 00:23:48
Rotonen
ec2 is hard to judge for small differences as that could just as well be dumb luck with noisy neighbours and cpu steal
2018-08-29 00:25:53
fydel
i was using the m5d.12x and m5d.24x
2018-08-29 00:26:20
Rotonen
very early on the digital ocean high cpu instances were competitive as well
2018-08-29 02:16:31
Fireduck
I get 10kh/s on a pi 3
2018-08-29 06:03:59
Clueless
``` 19:46 meese | [12:37:52] A couple of questions: 1) Do you know the deadline for this work? 2) My minimum level of engagement is around $2500. I just want to make sure your budget isn't below that. Thanks! ```
2018-08-29 12:24:36
fydel
yep. Optane 900P makes 95kh/s.
2018-08-29 12:35:27
fydel
i better should have bought RAM instead.
2018-08-29 12:35:59
Rotonen
or multiple low power SSDs
2018-08-29 12:37:50
Rotonen
the kingston DCP1000 could be interesting if you wanna burn more on trying things out
2018-08-29 12:45:02
fydel
i think i will just send it back.
2018-08-29 12:46:02
fydel
wow. IOPS 4K lesen/schreiben 900k/​145k
2018-08-29 13:20:32
Rotonen
iops per money is not too good, though
2018-08-29 14:27:24
fydel
i wonder how much mh/s fireduck's ram cluster will have.
2018-08-29 14:27:40
fydel
with the itx boards
2018-08-29 14:47:37
Fireduck
What is the most ram you can put on itx?
2018-08-29 14:51:29
Rotonen
128 is the easy answer
2018-08-29 14:52:46
Rotonen
but look up supermicro X11SDV boards
2018-08-29 14:54:35
Rotonen
that’s assuming to have been installed a few parallel in an 1U rack case with airflow
2018-08-29 14:57:53
Rotonen
cpu and mobo for ~600, up to 512GB RAM
2018-08-29 16:17:57
Fireduck
nice
2018-08-29 16:22:20
Rotonen
jotted numbers for 1T SSD, samsung 970 EVO comes out on top
2018-08-29 16:23:59
Rotonen
you need to rent a warehouse for your entropy soon
2018-08-29 16:24:33
Fireduck
heh, I've been using these since they are so damn cheap: https://www.amazon.com/Seagate-Expansion-Desktop-External-STEB8000100
2018-08-29 16:24:54
Fireduck
cheaper than a naked 8tb drive somehow
2018-08-29 16:25:07
Fireduck
I assume it is actually gum and nuts in there
2018-08-29 16:25:12
Rotonen
actually scratch the EVO, 10W power draw, heats up
2018-08-29 16:25:50
Fireduck
You working on a small mining machine spec?
2018-08-29 16:26:09
Rotonen
ballparking
2018-08-29 16:26:16
Rotonen
and sorta
2018-08-29 16:26:30
Rotonen
maybe an index could be useful
2018-08-29 16:27:05
Rotonen
(read bandwidth * read iops) / (price * power draw)
2018-08-29 16:27:42
Rotonen
gonna flesh out the tables at some point
2018-08-29 16:28:02
Fireduck
it is a fun little problem
2018-08-29 16:28:11
Rotonen
btw. dunno how many memory channels the skylake xeon d has
2018-08-29 16:28:46
Rotonen
the data visualization problem is fun
2018-08-29 16:29:17
Rotonen
i guess i should do spec tables per snowfield
2018-08-29 16:30:29
Rotonen
4, meh
2018-08-29 16:30:38
Rotonen
so 800kH/s
2018-08-29 16:41:24
Rotonen
pff, i’ll just recommend a product per category
2018-08-29 17:10:50
Fireduck
Ok, I might be an idiot but we are on paid slack now. :wink:
2018-08-29 17:11:09
Fireduck
May have to change that over time, but for now I don't mind.
2018-08-29 17:14:03
fydel
how expensive is it?
2018-08-29 17:15:14
Fireduck
Right now, $400/mo
2018-08-29 17:15:29
Fireduck
but it is worth it it to have the backlog of witty remarks from you guys
2018-08-29 17:16:03
fydel
uff. that's much.
2018-08-29 17:16:05
fydel
hehe
2018-08-29 17:16:32
fydel
what about moving to discord?
2018-08-29 17:17:10
Fireduck
I think of it like this, I've put hundreds of hours or my time and at least a few thousand dollars in hardware into this, might as well not go cheap on this
2018-08-29 17:17:21
Fireduck
I find discord very discordant
2018-08-29 17:17:44
fydel
good point.
2018-08-29 17:55:47
Rotonen
10k per year is an acceptable price for a hobby for many
2018-08-29 18:23:33
fydel
crazy
2018-08-29 18:44:53
CryptoQuan
@Fireduck any update on a GUI wallet?
2018-08-29 18:45:27
Fireduck
Haven't worked on it much, clueless filled my brain with crazy ideas instead
2018-08-29 18:51:08
Fireduck
The networking, crypto and wallet storage work. I should really hire someone to do the android UI work.
2018-08-29 20:48:12
Clueless
@Fireduck The community has previously suggesting creating donation addresses to help pay third party work.
2018-08-29 20:48:46
Clueless
meese seems interested in branding/design/web templates starting around $2500
2018-08-29 20:48:46
Fireduck
not a bad idea
2018-08-29 20:49:21
Fireduck
I personally don't care about design, it doesn't make the thing work
2018-08-29 20:49:30
Fireduck
but I understand the reasons for it
2018-08-29 20:49:37
Clueless
agreed.
2018-08-29 20:52:00
Fireduck
I consulted the board. The response is "orange". https://xkcd.com/1525/#eyJxIjoib3V0c291cmNlIGFuZHJvaWQgZGV2PyIsImEiOlsiJiN4MUYzNEE7Il19 [Title text] ""
2018-08-29 20:52:16
Fireduck
it could be a peach
2018-08-29 21:05:05
Clueless
that is so helpful
2018-08-29 21:05:54
Fireduck
yeah
2018-08-29 21:17:55
Clueless
its how I make investment/financial/life decisions
2018-08-29 21:18:39
Clueless
the ambiguity of its answers mean you wind up doing what you wish to do.
2018-08-29 21:21:25
Fireduck
@CryptoQuan I missed the files you made for the icon version you made with the flower and snowflake
2018-08-29 21:21:31
Fireduck
can you send them to me again?
2018-08-29 21:30:08
Rotonen
’level up, +1 managerism’
2018-08-29 21:31:13
Fireduck
oh yeah, it is all under the shared files button
2018-08-29 21:50:57
Fireduck
ah, xkcd also got our business plan already: https://xkcd.com/1032/ [Title text] "Our company is agile and lean with a focus on the long tail. Ok, our company is actually a polecat I found in my backyard."
2018-08-29 23:17:32
aikida3k
My wallet doesn't seem to be downloading the blockchain: The block explorer shows I have a balance but my wallet shows nothing. Is there a way to resync?
2018-08-29 23:20:17
aikida3k
Or maybe it's the node config. Let me try that.
2018-08-29 23:21:47
Rotonen
the wallet asks your node
2018-08-29 23:22:14
Rotonen
snowplough, now with stats on unpaid shares https://snowplough.kekku.li/ A Snowblossom mining pool which tries to do things slow, steady, stable and thorough.
2018-08-29 23:25:52
aikida3k
I changed the database from rocksdb to lobstack in the node config
2018-08-29 23:27:33
Fireduck
does your node have all the blocks?
2018-08-29 23:27:35
aikida3k
@Rotonen shouldn't the node show what the current block height is?
2018-08-29 23:28:29
aikida3k
@Fireduck no, I don't think so. The node is showing that it "Got first tip from a remote peer"
2018-08-29 23:29:16
Rotonen
give it time
2018-08-29 23:30:48
Fireduck
yeah
2018-08-29 23:32:37
aikida3k
The node is updating on my Win7 workstation but the node is hanging on my Win10 workstation
2018-08-29 23:32:42
aikida3k
hmmm
2018-08-29 23:36:13
Fireduck
It can take some time to get started
2018-08-29 23:52:43
mjay
nice stats @Rotonen! I´ll send my big mining rig over to you