| #!/bin/bash | |
| # from | |
| # http://bergamini.org/computers/creating-favicon.ico-icon-files-with-imagemagick-convert.html | |
| convert source-WxW.png -resize 256x256 -transparent white favicon-256.png | |
| convert favicon-256.png -resize 16x16 favicon-16.png | |
| convert favicon-256.png -resize 32x32 favicon-32.png | |
| convert favicon-256.png -resize 64x64 favicon-64.png | |
| convert favicon-256.png -resize 128x128 favicon-128.png |
| ;;; See the inspirational SO question: http://stackoverflow.com/questions/3346382 | |
| ;;; My old Gist with my first take on this: https://gist.github.com/492764 | |
| ;;; Don Jackson's Gist based on the above: https://gist.github.com/1846993 | |
| ;;; Licence: EPLv1, the same as Clojure | |
| (in-ns 'clojure.tools.trace) | |
| (defn trace-var | |
| "If the specified Var holds an IFn and is not marked as a macro, its |
| Design: | |
| Note: The smallest block that can be allocated is 8 bytes due to the following structure. | |
| Byte Layout: | |
| 0 3 7 | |
| ---------------------------- | |
| | size of | offset to | | |
| | data | next free | | |
| ---------------------------- |
For a while, I have felt that the following is the correct way to improve the mass assignment problem without increasing the burden on new users. Now that the problem with the Rails default has been brought up again, it's a good time to revisit it.
When creating a form with form_for, include a signed token including all of the fields that were created at form creation time. Only these fields are allowed.
To allow new known fields to be added via JS, we could add:
| If you want, I can try and help with pointers as to how to improve the indexing speed you get. Its quite easy to really increase it by using some simple guidelines, for example: | |
| - Use create in the index API (assuming you can). | |
| - Relax the real time aspect from 1 second to something a bit higher (index.engine.robin.refresh_interval). | |
| - Increase the indexing buffer size (indices.memory.index_buffer_size), it defaults to the value 10% which is 10% of the heap. | |
| - Increase the number of dirty operations that trigger automatic flush (so the translog won't get really big, even though its FS based) by setting index.translog.flush_threshold (defaults to 5000). | |
| - Increase the memory allocated to elasticsearch node. By default its 1g. | |
| - Start with a lower replica count (even 0), and then once the bulk loading is done, increate it to the value you want it to be using the update_settings API. This will improve things as possibly less shards will be allocated to each machine. | |
| - Increase the number of machines you have so |
| """ | |
| This script ingests a CSV of last names and builds JSON output on the | |
| percentage of last names that begin with each letter of the alphabet. | |
| I initially ran it on a CSV-ified version of the US Census's list of all last | |
| names with more than 100 occurrences, and used the frequency field within that | |
| file to weigh the output, but absent that field, it assigns equal weight to | |
| each name, allowing us to also process our TCamp 2012 attendence list. | |
| Using the script on the Census data available in: |
| ;; Datomic example code | |
| (use '[datomic.api :only (db q) :as d]) | |
| ;; ?answer binds a scalar | |
| (q '[:find ?answer :in ?answer] | |
| 42) | |
| ;; of course you can bind more than one of anything | |
| (q '[:find ?last ?first :in ?last ?first] | |
| "Doe" "John") |
| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
| (ns datomic-helpers | |
| (:require [datomic.api :as d])) | |
| ;;; Expose Datomic vars here, for convenience | |
| ;;; Ring middleware | |
| (defn wrap-datomic | |
| "A Ring middleware that provides a request-consistent database connection and | |
| value for the life of a request." |
