Compartimos la programación de la Sección de Infancia y Juventud del XI Festival Internacional DERHUMALC- Cine de Derechos Humanos que se lleva a cabo en la ciudad de Buenos Aires del 27 de Mayo al 10 de Junio del presente año.La Sección de Infancia y Juventud es coordinada por la Asociación Vientos del Sur.
Comparto con ustedes un video de una exposición que tuve la oportunidad de hacer el año pasado en representación de la Asociación Vientos del Sur, titulada "Participación Juvenil y Nuevas Tecnologías".
En mi exposición abordo someramente conceptos y herramientas útiles para el trabajo de las ONGs juveniles.
Web 2.0, Ciberactivismo, los nativos digitales, el poder de los Blogs, los Wikis, las mal llamadas redes sociales, entre otros temas están incluidos en este resumen de menos de 10 minutos (la exposición original duró 30 minutos)
Gracias a Gastón por realizar la filmación y a Nacho por convertirla a formato digital.
A quienes les interese la relación entre participación, juventud e internet, los invito a leer un artículo que escribí el año pasado para un dossier sobre "juventud y TICs" para el Portal de Juventud de América Latina y el Caribe, clickeando acá
Hacer periodismo online a veces puede parecer tedioso, repetitivo, y hasta alienante, pero en ocasiones, también puede ser gratificante. A mí me gratifica servir para que algunas historias sean contadas y difundidas:
“Somos una pareja de hombres y nos queremos casar”
Alex y José María se conocieron en 2005 y mañana solicitarán un turno para contraer matrimonio. “Sabiendo que la interpretación de la ley actual nos va a discriminar, les pedimos que nos acompañen en este acto de amor”, dice la invitación...Seguí leyendo esta historia en la nota que escribí para ElArgentino.com
El 4º encuentro juvenil de Memoria, Verdad y Justicia fue organizado por la municipalidad de Berazategui junto con el Consejo Escolar local, durante los días 16 y 17 de abril de 2009. Se trató de una muestra estética y dinámica a cargo de los estudiantes y las instituciones escolares de Berazategui.Los principales destinatarios fueron los jóvenes berazateguenses, docentes, directivos, padres, y principalmente alumnos de 1º y 2º de Escuelas Secundarias, Polimodales, Técnicas, Adultos y Superior del distrito.
La Asociación Vientos del Sur recibió a la Presidenta de la organización Youth for Human Rights International, Dra. Mary Shuttleworth, quien visitó Buenos Aires, como parte de una gira mundial con fines educativos. Participaron de la reunión miembros del staff de nuestra asociación, así como también directivos de la representación local de YHRI, de reciente creación.
Escribo esto mientras se me caen las lágrimas de tristeza y emoción al mismo tiempo leyendo todos los mensajes de agradecimiento y reconocimiento en Twitter, Facebook y diarios online.
Hace menos de dos horas murió el ex presidente de la Nación, Raúl Alfonsín. No tiene mucho sentido que me explaye mucho. Solamente vale decir que como joven político (en sentido amplio y estrecho de la palabra política) siempre tuve gran admiración y respeto por su persona. Me pareció siempre un tipo inteligentísimo, muy culto y sobre todo, honrado.
Durante mi adolescensia fui con ganas a varias conferencias que dio cuando ya era ex presidente. Me acuerdo cuando en una de ellas dijo -palabras más, palabras menos- que el "tercer sector" debía ser valorado, pero en su justa medida, porque también representaba una forma de privatización de lo público... en ese momento recién se empezaba a hablar de las ONGs y esa idea, en el contexto del menemismo, era una llamada de atención...
Hoy un compañero de trabajo me preguntó si me acordaba algo de su gobierno y sí, algunos fragmentos de esos tiempos tengo en la memoria.
Lo primero que recuerdo es la campaña presidencial. Tengo la imagen de estar en la casa de mi abuelo viendo la televisión (tenía 5 años) y a mí me había caído re bien esa forma de saludar de Alfonsín, agarrándose las manos y yo lo imitaba. Hasta que mi mamá me dijo que no hiciera eso delante de mi abuelo porque se iba a enojar (él era peronista hasta la médula). También me acuerdo de las pintadas Luder-Bittel y la RA de las calcomanías.
Me acuerdo de la gran movida cultural en los barrios. Mi papá me llevaba seguido a fiestas en las calles y a centros culturales, por ejemplo el de Parque Chacabuco, siempre con exposiciones y con actividades para chicos.
Una vez, en un festival se armó un concurso de baile y vaya uno a saber por qué me llevé uno de los premios! :P Tengo todavía el trofeo en la casa de mis viejos. El animador decía "que suba el chico que tiene tal y cual ropa (no me acuerdo exáctamente) y yo no me daba por aludido... hasta que alguien me dijo: che, me parece que hablan de vos, juajaua...
Otro gran evento al que fui con mi papá fue la Bienal de Arte Joven. Había mucha gente con boinas blancas y no recuerdo bien a raiz de qué exposición de la bienal mi papá me explicó de qué se trataba la llamada "guerra de las galaxias" (y no hablamos de la película eh...)
También me acuerdo de la elección de 1987. Yo tenía varicela, pero no me había pegado fuerte, así que mi papá me llevó a votar y me dejaron entrar en el cuarto oscuro!
Y sí, también me acuerdo de los momentos malos. Me acuerdo del copamiento al cuartel de La Tablada. Y me acuerdo de estar en el Supercoop con mi mamá y que muchos repositores estuvieran cambiando los precios permanentemente. Y me acuerdo en la colonia de vacaciones charlando con otros chicos sobre el precio del dólar (!)
Me acuerdo también de haber ido a varias marchas con mi mamá en contra de la ley de obediencia debida y punto final.
Y sí, también me acuerdo, aunque cueste decirlo, de festejar el triunfo de Menem en las elecciones de 1989 :S Pero también, de lo rápido que se desmoronó toda la ilusión cuando de revolución productiva se pasó a darle todo el poder a Bunge & Born.
Los ignominiosos años del gobierno de Menem y la mierda de la que se llenó el hacer política no hicieron otra cosa que iluminar la figura de Alfonsín.
Don Raúl, muchas gracias por todo. Como acaba de decir mi novia, al contarle de tu paso a la inmortalidad: fuiste "el político más capo que mi generación pudo conocer". Que descanses en paz.
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La foto que ilustra este posteo me la saqué en agosto de 1997, durante una conferencia que dio Alfonsín en la sede del Partido Demócrata Cristiano. Yo en ese entonces tenía 19 años, era militante político y presidía la Juventud Demócrata Cristiana de la Ciudad de Buenos Aires. :)
Tout récemment, c'est le géant facebook, le plus grand réseau social en ligne avec près de 175 millions de membres, qui a été attaqué il y a quelques jours. D'après les experts, une application véreuse a traversé la barrière de sécurité, heureusement Facebook l'a supprimé très rapidement.
L'emergence des réseaux sociaux a en effet booster l'utilisation des TIC, et de nouveaux comportement sur le web.
Ces réseaux sociaux qui rapportent énormément sont donc à présent la cible des cybercriminels qui souhaitent faire voir à un plus grand nombre de personnes leur ingéniosité, qui est malheureusement répréhensible par la lois internationales.
Nous sommes donc loin à présent de l'époque où seul les établissements publics comme aux Etats Unies, ou comme tout récemment plusieurs ministères au Cameroun et ailleurs étaient victimes.
The southern and western states are in the forefront of educational development in India. Now it is reaching such a flashpoint that higher educational institutes are popping up everywhere. Is this going to create heavy migration of students?
Hemali Chhapla writes in The Times of India “A common wisecrack among engineering aspirants in Andra Pradesh is that every second building in the state is an engineering college. It may cease to be a joke when institutes dishing out management and engineering degrees start mushrooming all over the country.
Global depression may have taken the wind out of campus placements but the rush for starting professional institutions is at an all time high. Data from the All-India Council for Technical Education (AICTE) shows that the dash to start professional colleges is more pronounced when it comes to engineering and management as compared to other streams like pharmacy, hotel management and catering technology or architecture.
AICTE has received 886 applications for starting engineering colleges and 1,084 applications for new anagement institutes. Fie states – Tamil Nadu, Andra Pradesh, Maharastra, Karnataka and Kerala – account for 69% of engineering graduates , implying that they also have most of India’s engineering colleges
Rush year
States Engineering MBA
Existing Fresh Existing Fresh
Maharashtra 239 85 216 160
MP 161 50 63 80
Tamil Nadu 352 144 158 41
AP 527 176 255 209
UP 241 83 213 214
Haryana 116 38 66 47
Across India 2388 886 1516 1084
Source: AICTE. Fresh applications are for colleges from academic year 2009-10
Five Indian sties – Tamil Nadu, Andra Pradesh, Maharashtra, Karnataka and Kerala – account for almost 69% of the country’s engineering graduates, implying that these states also have most of India’s engineering colleges.
This year, too, most applications for starting new institutes have come from these states, making educationists worry about a high regional imbalance creepin in; states like UP, Bihar, Gujarat, Rajasthan and Orissa together account for a measly 14% of Indian’s technological colleges.
Colleges that receive a nod by June 30 will be allowed to start classes this academic year itself; so officials expect even more applications to pour in.
Several academicians feel quality is losing out in the race to expand seats. “Can the country boast of even 100 engineering colleges that impart cutting-edge education?” asked a principal of Pune engineering college.
“So what is the point in a thousand new colleges every year? He asked. Part of the problem lies in the fact that most trusts running professional colleges are backed by politicians who pay little attention to quality, he added.
But the AICTE feels that meeting the massive demand for professional education is imperative. Twenty years ago, merely one per cent of a aspiring engineers got a seat.
Now nearly 70% manage to find a place, note AICTE officials, “It may come as a surprise but very few engineering seats wee left vacant last year”. AICTE chairman R.A.Yadav told TOI. “There is also a yawning gap between management aspirants and the number of seats in Indian B-schools.
“But how many management schools boast of full campus placement? And are even 30% of MBA institutes accredited by the NBA (National Board of Accreditation) asked an IIM-Bangalore faculty member.
Increasing the existing number of professional colleges is a must. In a view of the galloping population and raising educational aspirations of people more availability of higher educational institutes are must. But not by compromising the quality of the education offered.
Guesses were in the air. Whether Pranab Mukherjee, the acting Prime Minister and finance minister will unveil a voter populist interim budget? Contrary to the popular expectations he just presented the economic scenario and expenditure statement. In the past most of the heavy loaded interim budgets got backfired. The government which presented voter-centric interim budgets got defeated. This may be the dampener on the UPA dispensation. Nevertheless the politics of budget presentation was much stronger than any astrological calculations.
Sudipto Mundle writes in The Times of India (17.2.2009, p.20), reacting to the great bull run in US markets a few years ago, Allan Greenspan famously remarked that the market displayed ‘irrational exuberance’. Today it is tempting to misquote Greenspan that our our markets are suffering from ‘irrational pessimism’. The sensex dropped by about 3 per cent and the Nifty too headed down, while Pranab Mukherjee was still reading his Budget speech.
The Interim Budget is more a stock taking, along with expenditure proposals for parliamentary approval to keep the government running till the regular Budget by the next government. But even in such an exercise, which is by design underwhelming, there are a few important points worth noting. We had hoped in these columns earlier, as had others, that the government would temporarily shelve the Fiscal Responsibility and Budget Management (FRBM) Act. This has been done. The government has provided a huge fiscal stimulus during the fiscal 2008-09 amounting to over Rs.1,93,000 crore or 4.5 per cent of GDP over and above what was envisaged in last year’s Budget, which already provided for a deficit of over Rs.1,33,000 crore.
The true fiscal stimulus must include not only what was announced under the two packages in December 208 and January 2009, but also the expenditure under the two supplementary demands for grants approved by Parliament last September and December. It is another matter that these supplementary demands made up for the creative under provisioning of some known items of expenditure in last year’s Budget to remain within the fiscal parameters of the FRBM. The total consolidated deficit for 2008-09, including the actual budget deficit of the central government (6 per cent), the state governments (3.5 per cent) and some off-budget items such as the additional contingent liability for oil and fertilizer bonds (1.8 per cent), amounts to over 11.5 per cent of GDP or nearly Rs.6,26,000 crore.
It is this massive fiscal stimulus combined with sustained monetary stimulus measures from the RBI, that have kept the Indian economy chugging along at 6-7 per cent growth, even as most of the developed world has gone into a deep recession. It has also helped to arrest the free fall of stock market and the depreciation of the rupee. Conventional wisdom suggests that to be successful, such stimulus packages have to be timely, targeted and temporary. With these measures having come within a few weeks of the collapse of Lehman Brothers in September 2008, and with much of the stimulus directed at the worst affected sectors – exports, infrastructure, real estate, transport – the government and the central bank have clearly passed the first two tests.
But what does the Interim Budget have to tell us about the future? It provides for a central government deficit of 5.5 per cent in 2009-10, though Mukherjee indicated that this could rise by a further 1 per cent. Adding to that 3.5 per cent deficit of state governments, and possibly some further off-budget provisions, 2009-10 could also end up with a massive deficit of 10-11 per cent. Coming on top of the huge stimulus this year, this could indeed go a long way in pump priming demand, compensating for the loss in export demand from developed countries. Moreover, much of the additional spending is targeted at infrastructure, employment programmes and education and health programmes.
However, the question is how this massive deficit will be financed. The large government borrowing this year has crowded out the private sector. This is why interest-rates have not come down substantially, and banks are still shy of lending to private borrowers despite all the policy measures taken by the RBI. If next year’s deficit too is to be financed by market borrowing, that could be bad news for the private sector, and severely put at risk the recovery of private investment.
It is important, therefore, that a large part of the deficit be monetized .e financed by government borrowing from the RBI which prevents RBI financing of government deficits. The finance secretary did indicate that something of this kind may be in the offing. Low inflation minimizes the risk of inflationary pressures arising from the consequent increase in money supply. The shelving of the FRBM and the putting on hold of the MoU with RBI would set aside the two key anchors of prudence that have guided fiscal policy in recent years However, exceptional times require exceptional measures.
That being, said, it has to be added that abandoning fiscal prudence is fraught with risk, as we have learned to our cost in the past. Hence the third test of the stimulus, that it must be temporary. The fiscal and monetary stimuli are like major shocks being applied now to revive the economy. Research shows that the lag generated by such shocks being applied now to revive the economy.
Research shows that the lag generated by such shocks can last for years, making the recover itself fragile. It is imperative that the fiscal and monetary breaks be applied as soon as the economy returns to a high growth path. As Mukherjee indicated, strong fiscal and monetary compression, return to the FRBM regime and the MoU with RBI must remain high priorities. Hopefully, recovery will occur by 2010, so the fiscal consolidation can be initiated within the first half of the next government’s tenure, before the compulsions of the next electoral cycle take over.
Wisely the UPA government had presented the economic scenario as the interim budget. Without stirring the hornet’s nest it has moved to face the electoral battle. It is true that major decisions can be announced few days before the election code of conduct comes into force. In that sense one has wait for the last minute to see the government’s mood to restructure the economy. Anyway, decision without many controversies affecting public lives with adequate coalition arithmetic can win elections. One can assume that the government is steering the no controversy ship rather than high pro activity with controversies. This cool and calm may win another term for UPA not its ability to put the economy on the high speed track.
Everyone is in a hurry. No one knows where they are heading. This speed breaker free world is dangerous. Money, career, achievements, promotions ----- there is no end to the human desires. But at the end of the day those high end chasers are not happy. They are anywhere and everywhere but without happiness. After the recession they have added financial worry to their kitty of troubles. Are we in the right direction?
Sadhu Vishwamurtidas writes in The Times of India (17.2.2009 p.20)“ The best of countries and corporations are so because they have the best of budgets. Hence the concern over the national budget. However, if people spent as much time worrying about their domestic budget as they did about the national one, globally, things would be different. How many focus inwards to analyse how exactly they have budgeted their own hard-earned money.
Many of us continue to spend well beyond our income, inviting debts. Bhagwan Swaminarayan advises in his Shikshapatri, “One should keep a daily record of one’s expenditure and income and should always live within one’s means. All of us, rich or poor, should give something to charity”.
Still fewer people have worked out a ‘life’ budget for themselves. A life budget includes committing time to self, family, society and God. The lives of those who do this get enriched not just financially, but also socially and spiritually.
Many corporate executives invest all their time and effort in pursuing their careers and climbing the professional ladder. It is at all worthwhile? Most discover that their victory is empty and that they won it at an irreparable loss to their health, family and psyche, incurring obesity, heart disease and fatigue on the physiological front; separated spouse, estranged children and uncared-for-parents on the familial front; frustration, depression and stress on the physio-psychological front.
In many societies, this phenomenon has resulted in a tragic burgeoning of societies and cardiovascular and cancer-related deaths. The Royal bank of Canada devoted one of its monthly letters to this problem with the title, “Let’s Slow Down’, “we are victims of mounting tensions”, it enunciated. “We have difficulty relaxing: we are not living fully”.
For many in India too, life has taken on these contours, and living it is rather like going downhill in a truck without brakes. But it is still not too late. The World Health Organisation (WHO) predicts that stress will be the Number One killer in the world by 2020. And stress is usually nothing more than an individual’s failure to balance his lifestyle.
Living life is a healthy manner and living it fully means we have to maintain regular food habits and follow a sensible diet, regular exercise and rest, going out with family, working for charity and spending some time in reflection, mediation and prayer.
There is only one way to survive overwork or burnout. Be brave and bailout or you will be a loser. Life’s rat race only produces losers. It has no winners. Even if it does, the winner is still a rat. And usually a very large one.
A sage asked a prosperous king, “If you were about to die of thirst and starvation and someone offered you a glass of water and a loaf of bread in exchange for your wealth and kingdom, would you give them to him?” “of course I would”, replied the king. “Anybody would”. “then why”, asked the sage, “have you wasted your entire life amassing all this land and wealth when they are worth no more to you than a glass of water and a loaf of bread?”
Human life is priceless. God has bequeathed this limitless treasure trove to all. And as diversification is one of the secrets to successful investment, so is it the secret to a joyous and blessed life. Reach into your soul, and reach out to your family, society and God. Budget well.
Fast driving on the lifeway without control over the vehicle amounts to suicidal attempt. No one’s live is a straight line. Ups and downs are normal. There is no prediction or forecast which can help us to avoid. Crisis and cyclone can come without prior warning. Knowing this one should slow down and take time out to read the bold signals on the sides. Calm going can help to get rid of the bad consequences and make life ha
There is not a single culprit in the climate change crisis who wants to mend their ways. Every day new pollutants are emerging with more dangerous contributions. From electronic junks to eating habits air, water, soil and other essential common properties are damaged. In this nature destructive game advanced countries are the real villains.
The Times of India (16.2.2009) writes “When it comes to global warming, hamburgers are the real Hummers of food, scientists say. Simply switching from steak to salad could cut as much carbon as leaving the car at home a couple days a week. That’s because beef is such an incredibly inefficient food to produce and cows release so much harmful methane into the atmosphere, said Nathan Pelletier of Dalhousie University in Canada.
The livestock sector is estimated to account for 18% of the global greenhouse gas emissions and beef is the biggest culprit. Even though beef only accounts for 30% of meat consumption in the developed world it’s responsible for 78% of the emissions, Pelletier, said.
That’s because a single kilogram of beef produces 16 killograms carbon dioxide equivalent emissions: four times higher than pork and more than ten times as much as a kilogram of poultry. Pelletier said. If people were to simply switch from beef to chicken, emissions would be cut by 70%, Pelletier said.
Another part of the problem is people are eating far more meat than they need to. “Meat once was a luxury in our diet,” Pelletier said. “we used to eat it once a week. Now we eat it every day.”
If meat consumption in the developed world was cut from the current level of about 90kg a year to 53kg a year, livestock related emissions would fall by 44%.
“Given the projected doubling of meat production by 2050, we’re going to have to cut emissions by half just to maintain current levels.” Pelletier said.
No one knows the consequence of beef eating. The awareness about beef and pollution should be spread intensely. Anything excess is detrimental to both people and environment. What affects personally in certain matters undermine the environment too. Unlimited beef eating is dangerous for individuals health and ecology.
Indian courts are notorious for prolonging the legal battles. People who filled petitions in their young age of 30 are not alive today to hear the final pronouncement. It takes decades for the courts to arrive at a conclusion. By the time court decides the petitioner is not alive. Due to this inordinate delay few people have faith in the judiciary. Rape, murder, property misappropriation or arson not many people would like to lodge a police complaint and seek judicial recourse. They know very well the petitioner will be harassed endlessly without any justice coming in his or her life time. The immediate help for any justice to the crime committed is underworld and criminal gangs. The instant revenge and justice are vented by these gangsters who are fully time involved in killing. If the situation is allowed to continue the judicial and police systems will lose its relevance permanently.
According to The Times of India report (11.2.2009, p.1 & 7), 3,32,141 cases came up before the Delhi High Court in 2007-08. Each of these cases received five minutes of hearing (4 minutes, 55 seconds to be precise) and each minute of the court’s time cost a staggering Rs.6,327 to the state exchequer. Even adjournements without hearing don’t come cheap. All listed cases cost the court Rs.1,300 (on average), even if many got adjourned. The report released by Chief Justice A.P. Shah, claims HC disposed of 56,612 cases, including 47,017 filled in that year alone.
While clearing 56,612 cases, Delhi High Court worked with 32 judges, much below its sanctioned strength of 48, Chief Justice A.P. Shah said. While pointing to the “Crushing load” on the courts, the Chief Justice said at present rate of disposal, it would take 466 years for the high court to clear its backlog of cases entirely. He, however said “we have been able to reduce the cases of arrears from 79,818 in 2007 to 74,599 in 2008”.
The report adds that the rate of disposal of criminal cases in the year worked out to be 0.5 case per day. While such “working ours” analyses are done every year for bodies like Parliament and state legislatures, this is perhaps the first time a judicial body has come up with its figure.
Case study
No of cases listed before HC 332,141
Total expenditure incurred Rs. 42,45,47,490
No of cases dealt on a single day 64
Total number of working days 213
Time available for one hearing 4 min 55 sec
Cost incurred for one minute of a hearing 6,327
Average number of benches during ’07-08 24(8 division & 16 single)
The time and money spent have been worked out excluding “matters handled during summer vacation (June) and on three working Saturdays during 2007-08”. In order to calculate the time judges gave for each hearing. HC factored in the total number of cases dealt by judges. Sitting as a single bench or division bench, in a day (64 cases on average) with the total time available for them to hold court (315 minutes).
The total expenditure incurred by the court last year was Rs.42.45 crore for 213 working days. “the average cost of listing each case before a judge worked out to Rs.1,297 and the average court expenditure per minute by the court was Rs.6,327 or Rs.19,93,180 for each working days.
The judiciary must ensure justice is dispensed atleast during the life time of the petitioner if not immediately. With multiple options available for reformation, courts should not delay further. Immediately it should implement all the suggested reforms. Decentralising and expanding the judiciary are two crucial steps. Above all the top leadership should have the requisite will to cleanse the system and make it functional.
Les comparatifs entre Windows et Linux se multiplient, mais ne sont pas toujours pertinents. Celui posté sur Tux Radar intéressera tout particulièrement les professionnels, car il se concentre sur les problèmes de déploiement, de temps de démarrage… et de performance.
Ce test est effectué sur une machine moderne pourvue d’un Intel Core i7 920 (comprenant quatre cœurs et cadencé à 2,66 GHz), de 6 Go de mémoire vive et de deux disques durs de 500 Go. Le choix des OS est cohérent : Ubuntu 8.10 (stable) et Ubuntu 9.04 (alpha) côté Linux, Vista (stable) et 7 (bêta) dans le clan Windows. Les versions 32 bits et 64 bits sont testées dans chacun des cas.
Contrairement aux idées reçues, Linux s’installe bien plus rapidement que Windows et avec moins d’interventions de la part du technicien. Un bon point pour les déploiements en masse de cet OS. L’Ubuntu occupe également très peu de place. L’installer sur un netbook pourvu de 8 Go ou 12 Go de disque Flash est très largement envisageable. Nous ne pouvons en dire de même avec Windows 7, bien trop gourmand en espace de stockage : ici, un disque de 16 Go ou 20 Go semble être le minimum vital.
C’est une constante, Linux met plus de temps à démarrer que Windows. Par contre, une fois le bureau affiché, cet OS est entièrement chargé en mémoire, alors que Windows continue à lancer des services et à effectuer d’autres tâches pendant un temps qui peut atteindre les dix minutes. La stratégie employée est donc différente. Linux se rattrape sur le temps avant extinction de la machine, ici très court. Notez que si l’Ubuntu 9.04 64 bits adopte le système de fichiers ext4, elle reprend la seconde place de ce classement, 2,2 secondes derrière la version 32 bits de Windows 7. Pas mal !
La manipulation de données sur le disque dur couronne Linux comme grand champion. Avec l’ext4, les résultats grimpent encore, et parfois de plus de 25 % ! Il est à noter que Windows n’est pas très bon lorsqu’il s’agit de supprimer des fichiers, cette opération pouvant prendre parfois beaucoup de temps (ou parfois très peu). Linux ne fait toutefois guère mieux, la suppression de très gros fichiers (plusieurs gigaoctets) étant systématiquement assez longue sous ext3.
Performances pures : Windows repasse en tête
L’article de Tux Radar se termine sur un test de performance cross-plate-forme relativement complet. Ici, les performances de Windows sont supérieures à celles de Linux. Relativisons toutefois : les performances des versions 32 bits de Windows sont nettement supérieures à celles des versions 32 bits de Linux. Par contre, les moutures 64 bits des OS proposent des performances presque identiques, quoique toujours en faveur de Windows.
Cet écart entre les OS 32 bits et 64 bits s’explique aisément : Windows et ses applications sont adaptés à l’ensemble des spécificités des processeurs du marché. Si vous disposez d’un Pentium MMX, l’unité multimédia MMX sera utilisée dès que possible. Si vous disposez d’un Core 2 Duo, le système s’adaptera aux optimisations spécifiques à cette puce (présence du SSE, instructions plus rapides, etc.). Bref, le code est presque toujours exécuté au mieux, car les optimisations sont dynamiques.
Linux pourrait faire de même, mais les développeurs adoptent une approche souvent différente. Ainsi, il est compilé avec un jeu fixe d’optimisations, compatible avec une majorité de processeurs : en mode 32 bits, les unités multimédias (MMX, SSE, etc.) sont tout simplement ignorées, le système étant compilé pour fonctionner sur des 386 pourvus d’une unité de calcul sur les nombres flottants. Vous disposez d’un Core 2 Duo qui propose du SSE et accélère certains traitements ? Hélas, le code ne prendra que rarement en compte ces spécificités.
En mode 64 bits, les choses changent : les processeurs x86 compatibles avec ces instructions sont tous de la classe Pentium et intègrent tous les unités multimédias MMX et SSE. Aussi, le compilateur se fixe un lot d’optimisations de base bien plus conséquent. En conséquence les performances grimpent.
Au final, les résultats sont peu glorieux pour Windows Vista et Windows 7. L’Ubuntu bat ses deux OS à plate couture. La situation s’inverse toutefois lorsque les performances pures sont mesurées. Windows reprend alors l’avantage. Cependant, si vous optez pour une mouture 64 bits de Linux, cette différence de vitesse sera imperceptible (moins de 1 %).
