Hi All. I didn't make it to the presentation, but I downloaded the bitcoin software and tried it out.  It pretty much rendered my pc un-usable after a couple of mins until I managed to close it via the file menu.  Some how it caused my machine to swap like hell, and xorg ended up using several gigs of ram, see the top image attached.   My pc is reasonably powerful, 6 gig ram, quad core cpu etc.  running ubuntu 11.04, a 1gb gfx card so I wouldn't expect this to cause it to act like a lemon.  Any one got any ideas,  I ran the 64 bit gui version from the source forge site... cheers On Thu, Jun 30, 2011 at 1:25 PM, Chris O'Halloran wrote: http://www.libertariannews.org/2011/06/18/the-economics-of-bitcoin-how-bitc… http://austrianeconomists.typepad.com/weblog/2009/05/the-best-of-modern-aus… -- -- Rob Links: ------ [1] http://www.bitcoin.org/ [2] https://en.bitcoin.it/wiki/Main_Page [3] http://www.bitcoinwatch.com/ [4] https://forum.bitcoin.org/ [5] http://www.weusecoins.com/ [6] https://www.instawallet.org/ [7] https://en.bitcoin.it/wiki/API_reference_%28JSON-RPC%29 [8] https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list [9] http://www.libertariannews.org/2011/06/18/the-economics-of-bitcoin-how-bitc… [10] http://austrianeconomists.typepad.com/weblog/2009/05/the-best-of-modern-aus… [11] http://mises.org/journals/qjae/pdf/qjae9_4_5.pdf [12] http://en.wikipedia.org/wiki/Austrian_School [13] http://mises.org/ [14] http://unenumerated.blogspot.com/2005/12/bit-gold.html [15] http://dot-bit.org/Main_Page [16] https://docs.google.com/viewer?a=v|+|amp|+|pid=explorer|+|amp|+|chrome=true… [17] https://docs.google.com/viewer?a=v|+|amp|+|pid=explorer|+|amp|+|chrome=true… [18] mailto:wlug@list.waikato.ac.nz [19] http://list.waikato.ac.nz/mailman/listinfo/wlug [20] mailto:cmoman@gmail.com

http://spectrum.ieee.org/telecom/internet/ripple-credit-system-could-help-o… On Thu, 30 Jun 2011 18:25:55 +1200, Rob Brown-Bayliss wrote: _______________________________________________ wlug mailing list | wlug(a)list.waikato.ac.nz Unsubscribe: http://list.waikato.ac.nz/mailman/listinfo/wlug

I tried to run bitcoin again recently, for about the first time in a year. It slowed down my machine (3ghz dual core, 2gb ram) to a crawl for the entire time it was running. I left it three days except for shutting down occasionally so I could do other things, and finally gave up waiting. I have 4.5GB of blockchain and it's still not up to date. The last time I ran it was no problem at all and caught up from nothing in less than an hour, but the current version is HORRIBLE. On 25 January 2013 13:07, GJB <kiwigb(a)yahoo.com> wrote: _______________________________________________ wlug mailing list | wlug(a)list.waikato.ac.nz Unsubscribe: http://list.waikato.ac.nz/mailman/listinfo/wlug

I'm not MINING though.. just trying to find out if someone sent a few bitcoin since the last time I ran it. On 26 January 2013 11:18, Wolfgang <wv99999(a)gmail.com> wrote: > To quote (http://en.wikipedia.org/wiki/Bitcoin) > quote-start > The network as of 2012 required over one million times more work for > confirming a block and receiving an award (25 BTC starting from 28 November > 2012) than when the first blocks were confirmed. The network adjusts the > difficulty every 2016 blocks based on the time taken to find the previous > 2016 blocks such that one block is created roughly every 10 minutes. > end-of-quote > > > On 26/01/13 10:01, Bruce Kingsbury wrote: > > I tried to run bitcoin again recently, for about the first time in a > year. It slowed down my machine (3ghz dual core, 2gb ram) to a crawl > for the entire time it was running. I left it three days except for > shutting down occasionally so I could do other things, and finally > gave up waiting. I have 4.5GB of blockchain and it's still not up to > date. The last time I ran it was no problem at all and caught up from > nothing in less than an hour, but the current version is HORRIBLE. > > On 25 January 2013 13:07, GJB <kiwigb(a)yahoo.com> wrote: > > Is this guy in the thread below (30/06/2011) (who was that btw?) still > having trouble running the bitcoin client? I've never heard of any > runaway, machine-killing process associated with bitcoin before ... > except for intentionally setting off a mining job :) > > cheers. > > On Fri, 2013-01-25 at 10:36 +1300, mailinglist wrote: > > http://spectrum.ieee.org/telecom/internet/ripple-credit-system-could-help-o… > > On Thu, 30 Jun 2011 18:25:55 +1200, Rob Brown-Bayliss wrote: > > Hi All. > > I didn't make it to the presentation, but I downloaded the bitcoin > software and tried it out. It pretty much rendered my pc un-usable > after a couple of mins until I managed to close it via the file menu. > Some how it caused my machine to swap like hell, and xorg ended up > using several gigs of ram, see the top image attached. > > My pc is reasonably powerful, 6 gig ram, quad core cpu etc. running > ubuntu 11.04, a 1gb gfx card so I wouldn't expect this to cause it to > act like a lemon. > > Any one got any ideas, I ran the 64 bit gui version from the source > forge site... > > cheers > > On Thu, Jun 30, 2011 at 1:25 PM, Chris O'Halloran wrote: > > Hello All, > > Here is some more information from Greg's note at last Friday's > presentation. > > I'd also like to thank Greg for volunteering to talk and for such a > well presented and technical topic. Seeing the data miner in > action was also a bonus. > > Attached is the email that Greg sent to Bruce and myself earlier > this week. It seems as though there is plenty more reading on the > topic. > > I've also loaded Greg's presentation to google docs so that those > that weren't at the meeting can appreciate the presentation. > > Hi Chris, Bruce, > > as discussed here's the slideshow and talk-notes from last night I > promised I'd send to you to forward on to relevant people, > (group-wide > bounced me on the email size limit). > > Also here's a list of relevant links as requested; > > Project home page > http://www.bitcoin.org/ [1] > > Wiki Main_Page > https://en.bitcoin.it/wiki/Main_Page [2] > > Network status live feed > http://www.bitcoinwatch.com/ [3] > > Forum > https://forum.bitcoin.org/ [4] > > Layman promo video site > http://www.weusecoins.com/ [5] > > Instawallet (web wallet) > https://www.instawallet.org [6] > > API -reference pages > https://en.bitcoin.it/wiki/API_reference_(JSON-RPC) [7] > https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list > [8] > > Monetary theory - Austrian economics > > http://www.libertariannews.org/2011/06/18/the-economics-of-bitcoin-how-bitc… > > [9] > > http://austrianeconomists.typepad.com/weblog/2009/05/the-best-of-modern-aus… > > [10] > http://mises.org/journals/qjae/pdf/qjae9_4_5.pdf [11] > http://en.wikipedia.org/wiki/Austrian_School [12] > http://mises.org/ [13] > > Szabo bitgold post > http://unenumerated.blogspot.com/2005/12/bit-gold.html [14] > > Namecoin, distributed DNS Dot-bit project homepage > http://dot-bit.org/Main_Page [15] > > Feel free to email me for further links or information. > > Cheers, > > Greg B. > > Link to Greg's Bit Coin presentation [16] > > Link to Gregs' presentation notes [17] > > _______________________________________________ > wlug mailing list | wlug(a)list.waikato.ac.nz [18] > Unsubscribe: http://list.waikato.ac.nz/mailman/listinfo/wlug [19] > > -- > -- > > Rob > > > Links: > ------ > [1] http://www.bitcoin.org/ > [2] https://en.bitcoin.it/wiki/Main_Page > [3] http://www.bitcoinwatch.com/ > [4] https://forum.bitcoin.org/ > [5] http://www.weusecoins.com/ > [6] https://www.instawallet.org/ > [7] https://en.bitcoin.it/wiki/API_reference_%28JSON-RPC%29 > [8] https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list > [9] > > http://www.libertariannews.org/2011/06/18/the-economics-of-bitcoin-how-bitc… > [10] > > http://austrianeconomists.typepad.com/weblog/2009/05/the-best-of-modern-aus… > [11] http://mises.org/journals/qjae/pdf/qjae9_4_5.pdf > [12] http://en.wikipedia.org/wiki/Austrian_School > [13] http://mises.org/ > [14] http://unenumerated.blogspot.com/2005/12/bit-gold.html > [15] http://dot-bit.org/Main_Page > [16] > > https://docs.google.com/viewer?a=v|+|amp|+|pid=explorer|+|amp|+|chrome=true… > [17] > > https://docs.google.com/viewer?a=v|+|amp|+|pid=explorer|+|amp|+|chrome=true… > [18] mailto:wlug@list.waikato.ac.nz > [19] http://list.waikato.ac.nz/mailman/listinfo/wlug > [20] mailto:cmoman@gmail.com > > _______________________________________________ > wlug mailing list | wlug(a)list.waikato.ac.nz > Unsubscribe: http://list.waikato.ac.nz/mailman/listinfo/wlug > > _______________________________________________ > wlug mailing list | wlug(a)list.waikato.ac.nz > Unsubscribe: http://list.waikato.ac.nz/mailman/listinfo/wlug > > _______________________________________________ > wlug mailing list | wlug(a)list.waikato.ac.nz > Unsubscribe: http://list.waikato.ac.nz/mailman/listinfo/wlug > > > > _______________________________________________ > wlug mailing list | wlug(a)list.waikato.ac.nz > Unsubscribe: http://list.waikato.ac.nz/mailman/listinfo/wlug >

Hey Bruce LA of 2.5 but CPU under 10% suggests that you're hitting IO limits. What's the %sys or %wa in top? I'm not familiar with bitcoin, but you said you had 4.5GB of blockchain. If this means you've got 4.5GB of data on disk, and bitcoin is doing a lot of random accesses to it, it will definitely cause this kind of loading. If you had loads of spare ram you could try moving your blockchain to a ramdisk during the verify, then moving it back once you're done. Alternatively, if you had lots of spare ram, everything might end up fitting nicely in the fs cache, which would also improve random access. Otherwise you're looking at improving your disk IO system, which probably means an SSD. _______________________________________________ wlug mailing list | wlug(a)list.waikato.ac.nz Unsubscribe: http://list.waikato.ac.nz/mailman/listinfo/wlug