{"id":3200,"date":"2017-07-03T22:44:37","date_gmt":"2017-07-03T20:44:37","guid":{"rendered":"http:\/\/monodes.com\/predaelli\/?p=3200"},"modified":"2017-07-03T18:08:08","modified_gmt":"2017-07-03T16:08:08","slug":"already","status":"publish","type":"post","link":"https:\/\/monodes.com\/predaelli\/2017\/07\/03\/already\/","title":{"rendered":"Already?"},"content":{"rendered":"
\"Inforce<\/a>

Inforce IFC 6410<\/p><\/div>\n

I have overestimated the capabilities of my Inforce 6410. To be truly honest I knew that most ARM boards and the OSes running on it are 32bit and this includes Raspberries, but<\/p>\n

\n

“everyone knows that 4Gb of address space is enough for everything”<\/p>\n<\/blockquote>\n

me, now, mocking the famous “<\/span>640Kb ought to be enough for anybody. ” misattributed to Bill Gates<\/a><\/p>\n

Ok, ok. Actually I have understimated the requirements of mongodb which – I shall admit – already warned me ominously that 32bit may be a problem.<\/p>\n

Oh, my! I would have never guessed that I would have hit the limit. Well, I filled mongodb with 1,8Gb of crypto-trade data. Ok, not a small base of data I shall admit, but far from the addressing limit of 4Gb. This log entry tought scared me a little:<\/p>\n

2017-07-03T15:05:22.897+0200 [conn135] ERROR: mmap private failed with out of memory. You are using a 32-bit build and probably need to upgrade to 64<\/code>
\n2017-07-03T15:05:22.898+0200 [conn135] Assertion: 13636:file \/mnt\/cartoni\/mongodb\/zenbot4.3 open\/create failed in createPrivateMap (look in log for more information)<\/code><\/p><\/blockquote>\n

I should have remembered that 32 bit kernels usually leave only 2Gb of addressing space<\/a> for user-land programs.<\/p>\n

I think I will end up using a good old x64. More power hungry, I know, but at least I won’t hit such limits.<\/p>\n

All in all I launched only 5 paper-trading zenbots to compare various trading strategies.<\/p>\n","protected":false},"excerpt":{"rendered":"

I have overestimated the capabilities of my Inforce 6410. To be truly honest I knew that most ARM boards and the OSes running on it are 32bit and this includes Raspberries, but “everyone knows that 4Gb of address space is enough for everything” me, now, mocking the famous “640Kb ought to be enough for anybody.…<\/p>\n

Read more →<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[71],"tags":[165,166,164],"class_list":["post-3200","post","type-post","status-publish","format-standard","hentry","category-cryptocoins","tag-32bit","tag-arm","tag-mongodb"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/s6daft-already","jetpack-related-posts":[{"id":2616,"url":"https:\/\/monodes.com\/predaelli\/2017\/06\/14\/oh-i-bricked-it-again\/","url_meta":{"origin":3200,"position":0},"title":"Oh, I bricked it again","author":"Paolo Redaelli","date":"2017-06-14","format":"status","excerpt":"\u00a0 Oh, I bricked it again This time I tried to switch from trusty to xenial in a na\u00efve way, forcefully removing faaar too many packages, then iussing an apt dist-upgrade I was trying to install fairly recent releases of mongodb and nodejs1 It didn't handled it very well.... Now\u2026","rel":"","context":"In "Mood"","block_context":{"text":"Mood","link":"https:\/\/monodes.com\/predaelli\/category\/mood\/"},"img":{"alt_text":"Inforce IFC 6410","src":"https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2016\/05\/wp-1462654662786.jpeg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2016\/05\/wp-1462654662786.jpeg?resize=350%2C200 1x, https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2016\/05\/wp-1462654662786.jpeg?resize=525%2C300 1.5x"},"classes":[]},{"id":1505,"url":"https:\/\/monodes.com\/predaelli\/2016\/05\/07\/driving-me-crazy\/","url_meta":{"origin":3200,"position":1},"title":"Driving me crazy","author":"Paolo Redaelli","date":"2016-05-07","format":false,"excerpt":"This little Inforce IFC 6410 is a really good ARM system but there's a little glitch that is driving\u00a0 me crazy: I just can't make it see the Micro SD plugged in. I cannot even make the device appear under \/dev or in the dmesg log. Any help welcome, of\u2026","rel":"","context":"In "Hardware"","block_context":{"text":"Hardware","link":"https:\/\/monodes.com\/predaelli\/category\/hardware\/"},"img":{"alt_text":"Inforce IFC 6410","src":"https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2016\/05\/wp-1462654662786.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2016\/05\/wp-1462654662786.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2016\/05\/wp-1462654662786.jpeg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":2619,"url":"https:\/\/monodes.com\/predaelli\/2017\/06\/14\/unbricking-ifc-boards\/","url_meta":{"origin":3200,"position":2},"title":"Unbricking IFC Boards","author":"Paolo Redaelli","date":"2017-06-14","format":false,"excerpt":"As I did it again I had to follow Unbricking IFC Boards from A Canadian Engineer which is the same guide found on InForce website, but not buried under an NDA. Kudos! There are a couple of cases where you would encounter a bricked board and you would have to\u2026","rel":"","context":"In "Senza categoria"","block_context":{"text":"Senza categoria","link":"https:\/\/monodes.com\/predaelli\/category\/senza-categoria\/"},"img":{"alt_text":"Inforce IFC 6410","src":"https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2017\/06\/wp-1462654662786-150x150.jpeg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3196,"url":"https:\/\/monodes.com\/predaelli\/2017\/07\/02\/usb-flash-drive-and-wear-leveling\/","url_meta":{"origin":3200,"position":3},"title":"Usb flash drive and wear leveling","author":"Paolo Redaelli","date":"2017-07-02","format":false,"excerpt":"From: linux - How to correctly partition usb flash drive and which filesystem to choose considering wear leveling? - Super User an useful little change to fstab for usb sticks or SD attached to your ARM boards, like Raspberries or Inforce 6410: Also, in your fstab, be sure to use\u2026","rel":"","context":"In "Documentations"","block_context":{"text":"Documentations","link":"https:\/\/monodes.com\/predaelli\/category\/documentations\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2017\/07\/wp-1462654662786-150x150.jpeg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7327,"url":"https:\/\/monodes.com\/predaelli\/2020\/06\/11\/leggere-le-norme-uni-su-fedora-32\/","url_meta":{"origin":3200,"position":4},"title":"Leggere le norme UNI su Fedora 32","author":"Paolo Redaelli","date":"2020-06-11","format":false,"excerpt":"Come vorrei non sentire il bisogno di scrivere questa guida. Purtroppo le normative italiane edite dall'UNI spesso hanno valenza di legge quindi devono essere applicate. E sono \"rinchiuse\" dietro manette digitali, il famigerato DRM. Che dovrebbe stare per \"Digital rights management\" mentre nei fatti sono piuttosto delle \"Digital Restrictions Management\"\u2026","rel":"","context":"In "Documentations"","block_context":{"text":"Documentations","link":"https:\/\/monodes.com\/predaelli\/category\/documentations\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":5024,"url":"https:\/\/monodes.com\/predaelli\/2018\/12\/08\/unresponsive\/","url_meta":{"origin":3200,"position":5},"title":"Unresponsive","author":"Paolo Redaelli","date":"2018-12-08","format":false,"excerpt":"Well, I kept on this InForce IFC6410 for months in a row, oh wait, more than a year, so I should expect that a development board could fail sooner or later. Now the time has come and of course it seems always too soon. Next time I'll need an always\u2026","rel":"","context":"In "Hardware"","block_context":{"text":"Hardware","link":"https:\/\/monodes.com\/predaelli\/category\/hardware\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2018\/12\/wp-1544254707743..jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2018\/12\/wp-1544254707743..jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2018\/12\/wp-1544254707743..jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/monodes.com\/predaelli\/wp-content\/uploads\/sites\/4\/2018\/12\/wp-1544254707743..jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/posts\/3200","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/comments?post=3200"}],"version-history":[{"count":0,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/posts\/3200\/revisions"}],"wp:attachment":[{"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/media?parent=3200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/categories?post=3200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/monodes.com\/predaelli\/wp-json\/wp\/v2\/tags?post=3200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}