Public marks with search off-peak Public marks with search off-peak http://blogmarks.net/marks/search/off-peak Needle in a haystack: efficient storage of billions of photos | Facebook http://www.facebook.com/note.php?note_id=76191543919 <blockquote><p>The Photos application is one of Facebook’s most popular features. Up to date, users have uploaded over 15 billion photos which makes Facebook the biggest photo sharing website. For each uploaded photo, Facebook generates and stores four images of different sizes, which translates to a total of 60 billion images and 1.5PB of storage. The current growth rate is 220 million new photos per week, which translates to 25TB of additional storage consumed weekly. At the peak there are 550,000 images served per second. These numbers pose a significant challenge for the Facebook photo storage infrastructure.</p></blockquote> 2009-11-29T11:10:26Z karlcow facebook, bigtable, haystack

Needle in a haystack: efficient storage of billions of photos | Facebook

by karlcow & 1 other(s)

The Photos application is one of Facebook’s most popular features. Up to date, users have uploaded over 15 billion photos which makes Facebook the biggest photo sharing website. For each uploaded photo, Facebook generates and stores four images of different sizes, which translates to a total of 60 billion images and 1.5PB of storage. The current growth rate is 220 million new photos per week, which translates to 25TB of additional storage consumed weekly. At the peak there are 550,000 images served per second. These numbers pose a significant challenge for the Facebook photo storage infrastructure.

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]]> Les américains surfent (plus) la nuit http://asert.arbornetworks.com/2009/08/what-europeans-do-at-night/ * We all share the same morning and evening Internet addiction: On average, European traffic starts picking up around 5am GMT / 7 am CEST and similarly US traffic takes off around the same time at 7am EDT. Internet traffic also reaches its peaks in the early evening (7pm GMT / 9pm CEST in Europe and 10pm EDT / 7 pm PDT in the US). * North American’s don’t surf over dinner: Unlike European traffic, US daily Internet percentages take a small dip in the early evening between 6pm and 10pm EDT. In contrast, Europe traffic keeps climbing through the evening until a marked 9pm GMT / 11pm CEST drop off. Of course, Europeans tend towards later (and longer) dinner hours than their North American counterparts. * What Europeans do at night: Actually, this bullet point should be what Europeans don’t do at night — spend a lot of time on the Internet. In contrast to North America, European traffic plummets much more steeply and reaches a lower daily minimum than US traffic (US traffic never drops below 50% whereas Europe declines more more than 60% from its peak). Apparently, North American Internet users stay up later and use the Internet longer (next blog post we’ll explore what they’re doing on the Internet late at night). 2009-08-18T17:01:59Z thomas.deyries traffic

Les américains surfent (plus) la nuit

by thomas.deyries

* We all share the same morning and evening Internet addiction: On average, European traffic starts picking up around 5am GMT / 7 am CEST and similarly US traffic takes off around the same time at 7am EDT. Internet traffic also reaches its peaks in the early evening (7pm GMT / 9pm CEST in Europe and 10pm EDT / 7 pm PDT in the US). * North American’s don’t surf over dinner: Unlike European traffic, US daily Internet percentages take a small dip in the early evening between 6pm and 10pm EDT. In contrast, Europe traffic keeps climbing through the evening until a marked 9pm GMT / 11pm CEST drop off. Of course, Europeans tend towards later (and longer) dinner hours than their North American counterparts. * What Europeans do at night: Actually, this bullet point should be what Europeans don’t do at night — spend a lot of time on the Internet. In contrast to North America, European traffic plummets much more steeply and reaches a lower daily minimum than US traffic (US traffic never drops below 50% whereas Europe declines more more than 60% from its peak). Apparently, North American Internet users stay up later and use the Internet longer (next blog post we’ll explore what they’re doing on the Internet late at night).

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]]> Growing food movements | OurWorld 2.0 Climate Change, Peak Oil & Food Security Web Magazine and Video Briefs http://ourworld.unu.edu/en/2009/07/21/growing-food-movements/#more-863 2009-07-23T06:46:49Z anbll web, food, décroissance

Growing food movements | OurWorld 2.0 Climate Change, Peak Oil & Food Security Web Magazine and Video Briefs

by anbll

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]]> ASPO International | The Association for the Study of Peak Oil and Gas http://www.peakoil.net/ 2009-06-29T00:18:55Z rwatuny énergie, pétrole, gaz-naturel, Environnement, politique, référence, oilpeak, peakoil

ASPO International | The Association for the Study of Peak Oil and Gas

by rwatuny & 2 other(s)

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]]> Chrome and Firefox 3.5 Memory Usage http://dotnetperls.com/chrome-memory <blockquote><p>Firefox 3.5 used the smallest amount of memory during its peak, it used the smallest amount of memory when all points were averaged, and it used the smallest amount of memory at the end of the experiment after all tabs were closed. Firefox 3.5 continues Firefox 3.0's legacy of being the most memory efficient browser in this style of experiment.</p></blockquote> <p>A noter le "in this kind of experiment". Le test en lui-même ne montre pas grand chose, il est biaisé initialement par le fait que Windows gère mal la mémoire dans le sens où il ne maximise pas l'utilisation de la RAM. La seule chose importante est de savoir si la mémoire utilisée est la RAM ou la mémoire virtuelle (ie. un bête fichier). Tant qu'on reste dans la RAM, il n'y a pas de problème, et de ce point de vue là, une utilisation par Chrome de 1Go de mémoire sur les 4Go de mémoire physique (configuration du test) n'est pas forcément négatif au niveau des performances. De même, si la faible consommation de mémoire de Firefox est due à un nettoyage aggressif des structures de données temporaires, ça peut être pénalisant en vitesse. Mais étant donné que ce test ne regarde que la mémoire (espace) et pas la vitesse (temps), les conclusions ne peuvent être que très limitées. La remarque sur IE8 ne fait pas très sérieux...</p> 2009-06-23T08:31:03Z night.kame firefox, chrome, opera, consommation, biais, test

Chrome and Firefox 3.5 Memory Usage

by night.kame

Firefox 3.5 used the smallest amount of memory during its peak, it used the smallest amount of memory when all points were averaged, and it used the smallest amount of memory at the end of the experiment after all tabs were closed. Firefox 3.5 continues Firefox 3.0's legacy of being the most memory efficient browser in this style of experiment.

A noter le "in this kind of experiment". Le test en lui-même ne montre pas grand chose, il est biaisé initialement par le fait que Windows gère mal la mémoire dans le sens où il ne maximise pas l'utilisation de la RAM. La seule chose importante est de savoir si la mémoire utilisée est la RAM ou la mémoire virtuelle (ie. un bête fichier). Tant qu'on reste dans la RAM, il n'y a pas de problème, et de ce point de vue là, une utilisation par Chrome de 1Go de mémoire sur les 4Go de mémoire physique (configuration du test) n'est pas forcément négatif au niveau des performances. De même, si la faible consommation de mémoire de Firefox est due à un nettoyage aggressif des structures de données temporaires, ça peut être pénalisant en vitesse. Mais étant donné que ce test ne regarde que la mémoire (espace) et pas la vitesse (temps), les conclusions ne peuvent être que très limitées. La remarque sur IE8 ne fait pas très sérieux...

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]]> GEARFUSE » 3D Chessboard Places King At the Peak http://www.gearfuse.com/3d-chessboard-places-king-at-the-peak/ 2009-05-05T16:12:46Z julien.c jeux, plateau, original, jeux de société, echec, 3d

GEARFUSE » 3D Chessboard Places King At the Peak

by julien.c

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]]> Articles de Engineering @ Facebook | Facebook http://www.facebook.com/note.php?note_id=76191543919&ref=mf <blockquote><p>The Photos application is one of Facebook’s most popular features. Up to date, users have uploaded over 15 billion photos which makes Facebook the biggest photo sharing website. For each uploaded photo, Facebook generates and stores four images of different sizes, which translates to a total of 60 billion images and 1.5PB of storage. The current growth rate is 220 million new photos per week, which translates to 25TB of additional storage consumed weekly. At the peak there are 550,000 images served per second. These numbers pose a significant challenge for the Facebook photo storage infrastructure.</p></blockquote> 2009-05-01T02:15:07Z karlcow photographie, webdev

Articles de Engineering @ Facebook | Facebook

by karlcow

The Photos application is one of Facebook’s most popular features. Up to date, users have uploaded over 15 billion photos which makes Facebook the biggest photo sharing website. For each uploaded photo, Facebook generates and stores four images of different sizes, which translates to a total of 60 billion images and 1.5PB of storage. The current growth rate is 220 million new photos per week, which translates to 25TB of additional storage consumed weekly. At the peak there are 550,000 images served per second. These numbers pose a significant challenge for the Facebook photo storage infrastructure.

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]]> Fall and Winter Vegetable Planting Guide http://www.humeseeds.com/falwint.htm Fall and Winter gardening, although an old practice, is an excellent solution for keeping the tilth and fertility of your garden's soil at its peak levels. At the same time it yields crops of delicious vegetables throughout the fall and winter that cost a fraction of produce purchased in the supermarket. 2009-04-17T03:19:39Z rax262 gardening, tips, how to, winter

Fall and Winter Vegetable Planting Guide

by rax262

Fall and Winter gardening, although an old practice, is an excellent solution for keeping the tilth and fertility of your garden's soil at its peak levels. At the same time it yields crops of delicious vegetables throughout the fall and winter that cost a fraction of produce purchased in the supermarket.

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]]> Welcome to JCSref http://www.jazz2online.com/jcsref/node.php?menu=index&node=Destruct Scenery a sneak peak at Jazz Creation Station (Jazz Jackrabbit 2 editor) 2009-02-16T13:45:39Z sylvainulg jazz jackrabbit, epic megagames, sidescroller, platformer, editor

Welcome to JCSref

by sylvainulg

a sneak peak at Jazz Creation Station (Jazz Jackrabbit 2 editor)

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]]> EasyInstall - The PEAK Developers' Center http://peak.telecommunity.com/DevCenter/EasyInstall Easy Install is a python module (easy_install) bundled with setuptools that lets you automatically download, build, install, and manage Python packages. 2008-12-04T10:33:15Z parmentierf python, dev, package

EasyInstall - The PEAK Developers' Center

by parmentierf & 2 other(s)

Easy Install is a python module (easy_install) bundled with setuptools that lets you automatically download, build, install, and manage Python packages.

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]]> American Mustache Institute http://www.americanmustacheinstitute.org/ Enter the American Mustache Institute (AMI) - based in St. Louis as the city is home to the world's largest mustache - the St. Louis Arch. AMI is an advocacy organization protecting the rights of, and fighting discrimination against, mustached Americans by promoting the growth, care, and culture of the mustache. AMI continues to battle negative stereotyping that has accompanied the mustache since those glory years of the 1970s - the peak of mustache acceptance - fighting to create a climate of acceptance, understanding, flavor saving, and upper lip warmth for all mustached Americans alike. 2008-12-03T10:41:25Z moustache usa, rights, shop, picture, club

American Mustache Institute

by moustache

Enter the American Mustache Institute (AMI) - based in St. Louis as the city is home to the world's largest mustache - the St. Louis Arch. AMI is an advocacy organization protecting the rights of, and fighting discrimination against, mustached Americans by promoting the growth, care, and culture of the mustache. AMI continues to battle negative stereotyping that has accompanied the mustache since those glory years of the 1970s - the peak of mustache acceptance - fighting to create a climate of acceptance, understanding, flavor saving, and upper lip warmth for all mustached Americans alike.

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]]> Cynical Peak Software - Rivet http://cynicalpeak.com/rivet/ 2008-10-22T11:48:11Z pyros software, mac, xbox, media, share

Cynical Peak Software - Rivet

by pyros

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]]> Princeton Architectural Press * Book Description http://www.papress.com/bookpage.tpl?&isbn=9781568987767 <blockquote><p>In the late 1980s, Japan was awash in seemingly unlimited wealth and rising toward what would be the peak of its modern economic success, power, and influence. In 1991 the same lethal combination of risky loans, inflated stocks, and real estate speculation that created this "bubble economy" caused it to burst, plunging the country into its worst recession since World War II. </p></blockquote> 2008-10-12T12:22:27Z karlcow architecture

Princeton Architectural Press * Book Description

by karlcow

In the late 1980s, Japan was awash in seemingly unlimited wealth and rising toward what would be the peak of its modern economic success, power, and influence. In 1991 the same lethal combination of risky loans, inflated stocks, and real estate speculation that created this "bubble economy" caused it to burst, plunging the country into its worst recession since World War II.

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]]> YouTube - Congressman Bartlett and Peak Oil Revisited [Part 1] http://youtube.com/watch?v=Gtkq5DdcgYA&feature=related <blockquote><p>Congressman Bartlett and Peak Oil Revisited [Part 1]</p></blockquote> Explication en 4 parties par un député américain sur les problèmes du pic du pétrole. 2008-06-29T03:26:59Z karlcow écologie, societé

YouTube - Congressman Bartlett and Peak Oil Revisited [Part 1]

by karlcow

Congressman Bartlett and Peak Oil Revisited [Part 1]

Explication en 4 parties par un député américain sur les problèmes du pic du pétrole.

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]]> Ski wear and Golf wear - Peak Performance http://www.peakperformance.com/templates/ski____6245.aspx 2008-05-03T12:48:23Z rvoluer sortir, reference

Ski wear and Golf wear - Peak Performance

by rvoluer

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]]> PushToTest http://www.pushtotest.com/ PushToTest - The Open-Source Test Automation Company Put The Experts At Testing Web Applications, Web Services, SOA, Ajax To Work For You With 160,000 users, PushToTest is the open-source test automation solution for medium and large enterprises to surface information system issues of scalability, load and performance test automation, regression test automation, and business service monitoring challenges that keep enterprises from running at peak efficiency and customer/vendor satisfaction. 2008-03-07T11:55:26Z rmaltete open-source, ajax, stress-test, webdev, utilitaire

PushToTest

by rmaltete & 1 other(s)

PushToTest - The Open-Source Test Automation Company Put The Experts At Testing Web Applications, Web Services, SOA, Ajax To Work For You With 160,000 users, PushToTest is the open-source test automation solution for medium and large enterprises to surface information system issues of scalability, load and performance test automation, regression test automation, and business service monitoring challenges that keep enterprises from running at peak efficiency and customer/vendor satisfaction.

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]]> Design details of Audiogalaxy.com’s high performance MySQL search engine | Spiteful.com http://www.spiteful.com/2008/02/29/design-details-of-audiogalaxycoms-high-performance-mysql-search-engine/ As I mentioned before, search was one of most interesting problems I worked on at Audiogalaxy. It was one of the core functions of the site, and somewhere between 50 to 70 million searches were performed every day. At peak times, the search engine needed to handle 1500-2000 searches every second against a MySQL database with about 200 million rows. It was frequently hard to design for more than 10 or 100x our current traffic (and our growth was so dramatic that there wasn’t really ever time to spend more than a few weeks on the problem), so it wasn’t until the 4th major iteration on the cluster design that I really considered the scale problems to be solved. 2008-03-05T09:55:19Z mbertier mysql, performance, clevermarks

Design details of Audiogalaxy.com’s high performance MySQL search engine | Spiteful.com

by mbertier

As I mentioned before, search was one of most interesting problems I worked on at Audiogalaxy. It was one of the core functions of the site, and somewhere between 50 to 70 million searches were performed every day. At peak times, the search engine needed to handle 1500-2000 searches every second against a MySQL database with about 200 million rows. It was frequently hard to design for more than 10 or 100x our current traffic (and our growth was so dramatic that there wasn’t really ever time to spend more than a few weeks on the problem), so it wasn’t until the 4th major iteration on the cluster design that I really considered the scale problems to be solved.

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]]> NZ Ski Home http://www.nzski.com/ 3 Stations - Coronet Peak - The Remarkables - Mt Hutt 2008-03-04T13:26:27Z geraldg NZ South Island, nz, montagne, ski

NZ Ski Home

by geraldg & 1 other(s)

3 Stations - Coronet Peak - The Remarkables - Mt Hutt

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]]> 新藝術的方向：尋找感知法則 at M之道 http://maxmsp.recorderz.org/2007/11/12/新藝術的方向：尋找感知法則/ 藝術的普遍性通則 1. 巔峰轉移 Peak Shifting 2. 群組化 Grouping 3. 對比 Contrast 4. 孤立 Isolation 5. 感知上的解決問題 Perceptual problem Solving 6. 對稱 Symmetry 7. 對於一致性/一般觀點的嫌惡 Abhorrence of Coincidence/generic viewpoint 8. 重複，節奏，以及規律 Repetition, rhythm, and orderliness 9. 平衡 Balance 10. 譬喻 Metaphor 2007-11-27T03:31:36Z maple art

新藝術的方向：尋找感知法則 at M之道

by maple

藝術的普遍性通則 1. 巔峰轉移 Peak Shifting 2. 群組化 Grouping 3. 對比 Contrast 4. 孤立 Isolation 5. 感知上的解決問題 Perceptual problem Solving 6. 對稱 Symmetry 7. 對於一致性/一般觀點的嫌惡 Abhorrence of Coincidence/generic viewpoint 8. 重複，節奏，以及規律 Repetition, rhythm, and orderliness 9. 平衡 Balance 10. 譬喻 Metaphor

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]]> Mitre Peak (Milford Sound) New Zealand South Island http://www.richard-seaman.com/Wallpaper/NewZealand/SouthIsland/MitrePeakMirroredInMilfordSound.jpg 2007-09-15T19:01:07Z ainos landscape, island, photography

Mitre Peak (Milford Sound) New Zealand South Island

by ainos

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]]> [PEAK] PEAK Status Report http://www.eby-sarna.com/pipermail/peak/2007-June/002710.html While the core PEAK toolkit for AOP, MDA, and other TLA's (three-letter acronyms) hasn't been released or changed much in the last 2 or three years, some of the non-core tools have really taken off. 2007-06-26T14:23:02Z mbertier groupe:clever age, tools, python

[PEAK] PEAK Status Report

by mbertier

While the core PEAK toolkit for AOP, MDA, and other TLA's (three-letter acronyms) hasn't been released or changed much in the last 2 or three years, some of the non-core tools have really taken off.

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]]> EasyInstall - The PEAK Developers' Center http://peak.telecommunity.com/DevCenter/EasyInstall#administrator-installation If you have root access to your machine, you can easily configure it to allow each user to have their own directory where Python packages can be installed and managed by EasyInstall. 2007-06-26T12:14:45Z mbertier python, packaging

EasyInstall - The PEAK Developers' Center

by mbertier

If you have root access to your machine, you can easily configure it to allow each user to have their own directory where Python packages can be installed and managed by EasyInstall.

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]]> PowerSwitch - Raising awareness of Britain's Energy Future, rising energy prices, peak oil, the end of cheap oil and the oil crisis, promoting renewable energy. http://www.powerswitch.org.uk/ 2007-06-19T17:02:14Z stan oil, energy, peak, english, Anglais, anglophone, peak-oil, pic pétrolier, articles, forum

PowerSwitch - Raising awareness of Britain's Energy Future, rising energy prices, peak oil, the end of cheap oil and the oil crisis, promoting renewable energy.

by stan

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]]> Peak Oil - The Peak in world Oil production will change everything. http://www.peakoil.org/ 2007-06-15T13:34:46Z effraie peakoil, écologie, politique

Peak Oil - The Peak in world Oil production will change everything.

by effraie & 1 other(s)

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]]> Ottawa Peak Oil Awareness Website http://www.crudeawakening.net/ 2007-05-23T16:55:46Z rwatuny écologie, économie, politique, pic-pétrolier, énergie, pétrole

Ottawa Peak Oil Awareness Website

by rwatuny

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]]>