Yep, I'm in for 5. BTW: Who cares about CE? Is it illegal for you to sell something without it? If so I waiver my rights to sue you if my house burns down... you can get that in writing if you want!  |
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Ok, but what about RAM memory running out? How do you "fix" that, reboot every 12 hours?
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Why are you guys always focusing on the negative stuff... just look at that thing; it looks like a small reactor, like it's going to melt through the table! It's just awesome!  |
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this thermal design is bad, it means unfortunately most cases will come off, shame with such a cool design!
maybe theres some way to wall off the middle and make each half cool with the horizontal fans only but it looks like the shell will come off for most customers...
lets just pray to god these start without the fans connected, not like some hardware that reads the frequency of the fan and stops if none is found, I think their design is with thermistor though.
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Just FYI, since picocoin is not ready for prime time (and I think most projects will never be ready for prime time except the satoshi client; because nobody, and I mean NOBODY, wants to be responsible of erasing real money)...
This is insane though, individuals will probably never run this thing... I mean 10GB and lots of CPU/memory...
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I'm just adding tutorials on how to build stuff for the RPi here:
Here's BFGMiner for ASICMiner/BFL:
> sudo apt-get install autoconf libtool libncurses-dev yasm curl libcurl4-openssl-dev pkg-config git libjansson-dev uthash-dev libevent-dev
> git clone git://github.com/luke-jr/bfgminer.git bfgminer
> cd bfgminer
> ./autogen.sh
> ./configure
> make
> ./bfgminer -o stratum+tcp://stratum.bitcoin.cz:3333 -O user:pass -S icarus:/dev/ttyUSB0
I'm going to try and run both my SC 60GH on one RPi, will be interesting to see if it works!
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Hey I'm onto this RPi with free colocation path aswell.
Bitcoind consumes to much memory and diskspace to be a viable option.
I'll try and compile this to see if it runs ok.
When will payment be added?
Edit: I'm a complete noob, how do I build picocoin?
sudo apt-get install libevent-dev libjansson-dev automake libglib2.0-dev
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2 things that talk in the favour of the RPi:
- Free colocation!
- Huge community.
The problem with running bitcoin are also 2, and these are valid on any machine:
- Memory.
- Diskspace.
These 2 have to be fixed anyhow if BTC is going to go anywhere. I mean the average joe is not going to have 10GB+ of free diskspace or 0,5-1GB of free memory.
So if devs could just point me in the right direction as to where memory consumption/leak and blockchain pruning are taking place in the source I'll try my best.
My biggest concern is _why_ bitcoind needs that much memory?
Edit: gonna look at picocoin!
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So is there anything (besides digging in the source) to limit this on linux?
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Ok, so bitcoin is terminated after 5 hours by the raspberry OS because of memory: May 2 22:19:17 raspberrypi kernel: [46311.694148] net_ratelimit: 422920 callbacks suppressed
May 2 22:19:19 raspberrypi kernel: [46312.180357] kworker/0:0 invoked oom-killer: gfp_mask=0x102d0, order=3, oom_adj=0, oom_score_adj=0
May 2 22:19:19 raspberrypi kernel: [46312.180439] [<c0013a7c>] (unwind_backtrace+0x0/0xf0) from [<c0395134>] (dump_header.isra.15+0x74/0x1a0)
May 2 22:19:19 raspberrypi kernel: [46312.180490] [<c0395134>] (dump_header.isra.15+0x74/0x1a0) from [<c0091364>] (oom_kill_process+0x294/0x418)
May 2 22:19:19 raspberrypi kernel: [46312.180520] [<c0091364>] (oom_kill_process+0x294/0x418) from [<c00918cc>] (out_of_memory+0x1cc/0x29c)
May 2 22:19:19 raspberrypi kernel: [46312.180547] [<c00918cc>] (out_of_memory+0x1cc/0x29c) from [<c0094c98>] (__alloc_pages_nodemask+0x608/0x63c)
May 2 22:19:19 raspberrypi kernel: [46312.180581] [<c0094c98>] (__alloc_pages_nodemask+0x608/0x63c) from [<c00bc7f8>] (cache_alloc_refill+0x338/0x6a0)
May 2 22:19:19 raspberrypi kernel: [46312.180605] [<c00bc7f8>] (cache_alloc_refill+0x338/0x6a0) from [<c00bcc24>] (__kmalloc+0xc4/0x11c)
May 2 22:19:19 raspberrypi kernel: [46312.180636] [<c00bcc24>] (__kmalloc+0xc4/0x11c) from [<c02e6db8>] (__kmalloc_reserve+0x1c/0x64)
May 2 22:19:19 raspberrypi kernel: [46312.180661] [<c02e6db8>] (__kmalloc_reserve+0x1c/0x64) from [<c02e7740>] (__alloc_skb+0x74/0x158)
May 2 22:19:19 raspberrypi kernel: [46312.180683] [<c02e7740>] (__alloc_skb+0x74/0x158) from [<c02e89b0>] (__netdev_alloc_skb+0x98/0xd0)
May 2 22:19:20 raspberrypi kernel: [46312.180712] [<c02e89b0>] (__netdev_alloc_skb+0x98/0xd0) from [<c026aacc>] (rx_submit+0x1c/0x1f8)
May 2 22:19:20 raspberrypi kernel: [46312.180736] [<c026aacc>] (rx_submit+0x1c/0x1f8) from [<c026b184>] (kevent+0x210/0x27c)
May 2 22:19:20 raspberrypi kernel: [46312.180761] [<c026b184>] (kevent+0x210/0x27c) from [<c0035024>] (process_one_work+0x150/0x40c)
May 2 22:19:20 raspberrypi kernel: [46312.180784] [<c0035024>] (process_one_work+0x150/0x40c) from [<c0035604>] (worker_thread+0x150/0x498)
May 2 22:19:20 raspberrypi kernel: [46312.180815] [<c0035604>] (worker_thread+0x150/0x498) from [<c003a7c8>] (kthread+0x88/0x94)
May 2 22:19:20 raspberrypi kernel: [46312.180850] [<c003a7c8>] (kthread+0x88/0x94) from [<c000e9fc>] (kernel_thread_exit+0x0/0x8)
May 2 22:19:20 raspberrypi kernel: [46312.180861] Mem-info:
May 2 22:19:20 raspberrypi kernel: [46312.180869] Normal per-cpu:
May 2 22:19:20 raspberrypi kernel: [46312.180879] CPU 0: hi: 186, btch: 31 usd: 0
May 2 22:19:20 raspberrypi kernel: [46312.180903] active_anon:41475 inactive_anon:41483 isolated_anon:0
May 2 22:19:20 raspberrypi kernel: [46312.180903] active_file:112 inactive_file:181 isolated_file:0
May 2 22:19:20 raspberrypi kernel: [46312.180903] unevictable:12 dirty:0 writeback:7317 unstable:0
May 2 22:19:20 raspberrypi kernel: [46312.180903] free:30314 slab_reclaimable:457 slab_unreclaimable:4189
May 2 22:19:20 raspberrypi kernel: [46312.180903] mapped:100 shmem:0 pagetables:415 bounce:0
May 2 22:19:20 raspberrypi kernel: [46312.180954] Normal free:121256kB min:8192kB low:10240kB high:12288kB active_anon:165900kB inactive_anon:165932kB active_file:448kB inactive_file:724kB unevictable:48kB isolated(anon):0kB isolated(file):0kB present:487680kB mlocked:48kB dirty:0kB writeback:29268kB mapped:400kB shmem:0kB slab_reclaimable:1828kB slab_unreclaimable:16756kB kernel_stack:1288kB pagetables:1660kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:8387 all_unreclaimable? yes
May 2 22:19:20 raspberrypi kernel: [46312.180968] lowmem_reserve[]: 0 0
May 2 22:19:20 raspberrypi kernel: [46312.180985] Normal: 11514*4kB 6410*8kB 1461*16kB 1*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 121256kB
May 2 22:19:20 raspberrypi kernel: [46312.181029] 7639 total pagecache pages
May 2 22:19:20 raspberrypi kernel: [46312.181037] 7346 pages in swap cache
May 2 22:19:20 raspberrypi kernel: [46312.181046] Swap cache stats: add 43265, delete 35919, find 2742/2832
May 2 22:19:20 raspberrypi kernel: [46312.181052] Free swap = 0kB
May 2 22:19:20 raspberrypi kernel: [46312.181059] Total swap = 102396kB
May 2 22:19:20 raspberrypi kernel: [46312.208849] 122880 pages of RAM
May 2 22:19:20 raspberrypi kernel: [46312.208874] 30560 free pages
May 2 22:19:20 raspberrypi kernel: [46312.208882] 2558 reserved pages
May 2 22:19:20 raspberrypi kernel: [46312.208888] 4654 slab pages
May 2 22:19:20 raspberrypi kernel: [46312.208894] 221 pages shared
May 2 22:19:20 raspberrypi kernel: [46312.208900] 7346 pages swap cached
May 2 22:19:20 raspberrypi kernel: [46312.208909] [ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name
May 2 22:19:20 raspberrypi kernel: [46312.208963] [ 142] 0 142 720 2 5 133 -1000 udevd
May 2 22:19:20 raspberrypi kernel: [46312.208983] [ 248] 0 248 719 2 5 137 -1000 udevd
May 2 22:19:20 raspberrypi kernel: [46312.209003] [ 270] 0 270 719 2 5 135 -1000 udevd
May 2 22:19:20 raspberrypi kernel: [46312.209020] [ 1411] 0 1411 436 12 4 16 -1000 ifplugd
May 2 22:19:20 raspberrypi kernel: [46312.209037] [ 1440] 0 1440 436 12 5 16 -1000 ifplugd
May 2 22:19:20 raspberrypi kernel: [46312.209055] [ 1684] 0 1684 6992 64 7 49 0 rsyslogd
May 2 22:19:20 raspberrypi kernel: [46312.209071] [ 1716] 0 1716 1223 39 7 391 -1000 dhclient
May 2 22:19:20 raspberrypi kernel: [46312.209088] [ 1764] 0 1764 948 11 5 31 0 cron
May 2 22:19:20 raspberrypi kernel: [46312.209105] [ 1806] 104 1806 794 39 5 34 0 dbus-daemon
May 2 22:19:20 raspberrypi kernel: [46312.209123] [ 1843] 102 1843 1377 29 6 70 0 ntpd
May 2 22:19:20 raspberrypi kernel: [46312.209140] [ 1872] 0 1872 1552 20 6 88 -1000 sshd
May 2 22:19:20 raspberrypi kernel: [46312.209157] [ 1900] 65534 1900 503 6 6 26 0 thd
May 2 22:19:20 raspberrypi kernel: [46312.209173] [ 1911] 0 1911 935 1 6 32 0 getty
May 2 22:19:20 raspberrypi kernel: [46312.209190] [ 1912] 0 1912 935 1 6 32 0 getty
May 2 22:19:20 raspberrypi kernel: [46312.209207] [ 1913] 0 1913 935 1 5 32 0 getty
May 2 22:19:20 raspberrypi kernel: [46312.209223] [ 1914] 0 1914 935 1 5 32 0 getty
May 2 22:19:20 raspberrypi kernel: [46312.209240] [ 1915] 0 1915 935 1 6 32 0 getty
May 2 22:19:20 raspberrypi kernel: [46312.209257] [ 1916] 0 1916 935 1 5 32 0 getty
May 2 22:19:20 raspberrypi kernel: [46312.209286] [ 1917] 0 1917 515 1 4 31 0 getty
May 2 22:19:20 raspberrypi kernel: [46312.209306] [ 1923] 0 1923 6886 80 11 199 0 console-kit-dae
May 2 22:19:20 raspberrypi kernel: [46312.209323] [ 1990] 0 1990 5836 82 9 44 0 polkitd
May 2 22:19:20 raspberrypi kernel: [46312.209342] [ 7086] 0 7086 438 1 6 25 0 mysqld_safe
May 2 22:19:20 raspberrypi kernel: [46312.209359] [ 7437] 107 7437 81073 245 42 6951 0 mysqld
May 2 22:19:20 raspberrypi kernel: [46312.209377] [ 7438] 0 7438 836 1 5 20 0 logger
May 2 22:19:20 raspberrypi kernel: [46312.209394] [ 7810] 0 7810 2451 43 8 118 0 sshd
May 2 22:19:20 raspberrypi kernel: [46312.209410] [ 7817] 1000 7817 2451 75 8 106 0 sshd
May 2 22:19:20 raspberrypi kernel: [46312.209427] [ 7818] 1000 7818 1421 190 6 139 0 bash
May 2 22:19:20 raspberrypi kernel: [46312.209456] [13583] 0 13583 420 18 4 3 0 minissdpd
May 2 22:19:20 raspberrypi kernel: [46312.209476] [14084] 1000 14084 124336 74874 209 16776 0 bitcoind
Is there something one can do to work around this? |
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Howto compile bitcoind on raspberry pi: > sudo apt-get install libboost1.50-dev libboost-filesystem1.50-dev libboost-system1.50-dev libboost-program-options1.50-dev libboost-thread1.50-dev libcurl4-openssl-dev libdb5.3++-dev libminiupnpc-dev > wget https://github.com/bitcoin/bitcoin/archive/master.zip> unzip master.zip > cd bitcoin-master/src > make -f makefile.unix bitcoind Compilation takes about 1 hour, downloading the blockchain about 20 hours and the bitcoind executable is 43MB! Other than that it runs really well compared to AWS micro instance, and since RPi colocation is free and AWS micro would be atleast 20$/month with horrible CPU IO wait; this is a nobrainer! Goodbye AWS! |
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So I can't find any tutorial on how to build the latest bitcoind on the raspberry pi... I will create one when I'm done... just need a few pointers to how you could build/configure the bitcoind to run better on the raspberry: How do I compile the bitcoind with ultraprune? Edit: https://bitcointalk.org/index.php?topic=191729.msg2004228#msg2004228 |
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Now that was a long thread to read through. I want to revive this topic. What about if we use a B symbol with double vertical lines that only come out of the top and bottom of the B, similar to what are on the casascius coins and the official bitcoin client icon?  I couldn't find anything by searching, but I have seen this version in unicode. Can somebody point me to the code? Ok, it wasn't unicode, just .ttf html/css magic: use \[BTC\] (remove back-slashes) to enable that on the forum. |
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realized you need the whole chain to be safe anyhow and you can just copy the wallet to many bitcoind's to scale... the question is how to copy the wallet with todays bitcoind design, if the wallet was built to scale it would be easy, unfortunately it's this big monolithic blob so somebody needs to fix that; got high hopes for picocoin...
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I think we need an open source alternative for this, bitcoinj could be a start but it's overengineered and needs to be simpler to guarantee stable and error free execution.
Basically we need a distributed wallet, does anything similar exist?
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So basically use bitcoinj?
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Has anyone compiled bitcoind on the RPi already? Does it work well?
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How could/would one scale the current satoshi bitcoind?
With only one bitcoind instance that will be a bottleneck.
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That someone is the one you send the bitcoins to.
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