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Comment: Junk science (Score 1) 481

by compudj (#49339517) Attached to: No, It's Not Always Quicker To Do Things In Memory

Wow. Has anyone heard about buffered writes ? And does kernel-level page cache ring a bell ? No fsync was ever used in the benchmarks, therefore, it is never actually hitting the disk. The only good thing about this paper is that the Java and Python listings are available at the end, for everyone to identify the basic flaws in this research.

So yeah, it's faster to write directly to MEMORY than to do a copy before writing to MEMORY.

Comment: Re:Where the $900 ? (Score 1) 33

by isilrion (#49269949) Attached to: Cuba Approves First Public Wi-Fi Hub In Havana

What's wrong with you? Why the hostility? I even said "I doubt they are getting any discount here, but it is possible". I did not claim to know the details of his arrangement with ETECSA, why are you assuming I know? It is a fact that some government institutions pay in CUP, and Kcho's account with ETECSA is by no means normal (for starters, ETECSA doesn't sell ADSL, or any kind of connection for that matter, to Cubans, and it doesn't allow wifi without tons of paperwork and oversight). Without knowing details of his contract with ETECSA (which I suspect you may know, if you are who I think you are), I can't state anything different than that. It is possible, but unlikely. The situation is already very atypical as it is.

Also, if you have more information, like where is this hotspot, please share. I haven't been able to find that information anywhere and it would be very useful to know.

Comment: Re: First post - from Cuba (Score 2) 33

by isilrion (#49269793) Attached to: Cuba Approves First Public Wi-Fi Hub In Havana

or maybe a doctor wasnt paying attention a critical day

By that token, that applies to every country on earth. Believe what you will. I come from a family of doctors---Cuban doctors---including, what a coincidence, a neurosurgeon and an oncologist, and I can say from experience that the answer to the question asked is a resolute "yes". Of course, that is anecdotal "evidence" and not hard data, but I didn't see you provide any data either.

Comment: Re:Where the $900 ? (Score 4, Informative) 33

by isilrion (#49266605) Attached to: Cuba Approves First Public Wi-Fi Hub In Havana
That said, the actual price Kcho or the artist association is paying has not been disclosed. If the artist association is footing the bill (either directly or as a proxy for Kcho), it may be significantly cheaper than $900. The rates in those tables are "public" rates, but government institutions often get significant discounts, such as being charged partially in CUP instead of CUC (that would be up to 25 times cheaper). I doubt they are getting any discount here, but it is possible.

Comment: Re:Where the $900 ? (Score 5, Informative) 33

by isilrion (#49266561) Attached to: Cuba Approves First Public Wi-Fi Hub In Havana
Here. Look under the header "ADSL". ETECSA charges $890/month for a 2048/256 Kbps link. The article implies that Kcho is paying for that out of pocket. The hotspot is free for the users. Another article I read about it gave me the impression that the artist association could be footing the cost. In either case, the $900 refer to the price of the ADSL link.

Comment: Not clear from the summary or the article (Score 5, Informative) 33

by isilrion (#49266493) Attached to: Cuba Approves First Public Wi-Fi Hub In Havana

$4.50/hour is the price the governent charges in the public internet cafes, not the price at this new hotspot. This hotspot is free. That is the news here, this is the first internet hotspot that is free and open to the public. This is not clear from the article or the summary. Both mention the official cost and that Kcho decided to make it free, but they don't mention whether he succeeded in making it free. He did.

Kcho, whoever he is, is covering the outrageous cost of ADSL. I wonder if there is something we can do to help him.

Comment: I can understand why... (Score 1) 681

by alexandre (#49111995) Attached to: Bill Nye Disses "Regular" Software Writers' Science Knowledge

Those who did specialize in computer science early on, after high school let's say, tend to not understand physics / chemistry / biology / etc. as well, and it shows.

That doesn't mean they are anti-science / anti-global-warming or anything like that, just that the rest depends more on ambiant politic than critical use of scientific knowledge when shown scientific studies...

Comment: Re:Remoting status using Wayland? (Score 1) 189

by Mathieu Lutfy (#49056095) Attached to: Wayland 1.7.0 Marks an Important Release

We've moved from displaying remote applications from the xlib level over ssh, to the toolkit level over ssh (as parent described). It's Unix moving forward, finally.

Microsoft's proprietary RDP protocol or alternatives such as VNC work differently (and usually pretty slow, since they work similarly to xlib, passing compressed bitmap images over the wire). If you want a remote desktop and your network link is fast enough, that's fine, but for most cases, toolkit-over-ssh is more secure and efficient.

+ - New LTTng Analyses Tools for Linux

Submitted by compudj
compudj (127499) writes "Ever wondered why your program is experiencing spurious latencies ? This blog post about finding the root cause of a web request latency presents a new set of scripts, LTTng Analyses, which allows devops and developers to narrow down the root cause of those latencies, presenting statistics, frequency distribution, logs, and top usage of disk, network, CPU, memory, interrupts, and system calls to the console."

Comment: Re:Java-Free Like NeoOffice? (Score 1) 148

by Mathieu Lutfy (#48936277) Attached to: LibreOffice Gets a Streamlined Makeover With 4.4 Release

I agree, but as far as I know, on Debian it does not depend on Java. The Libre Office requirements page says it is only necessary for certain 'Base' features: http://www.libreoffice.org/get...

(I have never seen the popups, or had Java installed on my machine for a long time, so I was curious. Libre Office also runs pretty fast imho.)

NeoOffice basically stripped it from Base, and their download page says: "Base users: if you use Base, we recommend that you use OpenOffice with the Oracle Report Builder extension. The Base features in NeoOffice 2014.6 are much more limited than OpenOffice." (http://www.neooffice.org/neojava/en/macappstore.php)

Comment: Re:How do I send my old computers to Cuba? (Score 1) 122

by isilrion (#48852761) Attached to: Cuba's Pending Tech Revolution

I second the AC above. (Replying to you so you get the notification). Donate them locally. A few computers or clothes wont make much difference and will probably not reach the intended target. Trying to get Customs to release computers is not fun, even if you have all the paperwork in order. Been there, wouldn't want to do that again.

Now, if you plan on going to Cuba and have stuff you want to give away, by all means, carry extra clothes and a laptop. Check what you can bring in without paying extra and pay attention if they write down the details of the laptop (it may mean that they are going to fine you if you don't take it with you. I've never seen that, but I've heard stories). If you fly in to a small airport, most likely no one will bat an eye. Don't stay in a hotel, stay at a B&B (I hate the name tourists give them, "casas particulares"). Hopefully it will be obvious who will benefit the most from your gift. Just keep in mind that those who work with tourists (e.g., your hosts, bartenders, etc) are statistically better off than those who don't.

It is masked but always present. I don't know who built to it. It came before the first kernel.