In the following data T2D means “time to domination” (the expected time for Windows/Linux shares to cross, counting from the present date). DT2D means difference (increase/decrease) in T2D, with respect to last report. CLP means “current Linux Percent”, as given by last logged data, and DD means domination day (in YYYY-MM-DD format), and DCLP means “difference in CLP”, with respect to last logged data.

The numbers (again) seem a bit discouraging, but the data is what it is. Now MalariaControl goes up (it went down in previous report), but QMC goes slightly down. All others go up. The Linux tide seems unstoppable, however its forward speed is not necessarily high.

As promised, today I’m showing the plots for Spinhenge@home. In next issue, QMC@home.

Number of hosts percent evolution for Spinhenge@home (click to enlarge)

Accumulated credit percent evolution for Spinhenge@home (click to enlarge)

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In the following data T2D means “time to domination” (the expected time for Windows/Linux shares to cross, counting from the present date). DT2D means difference (increase/decrease) in T2D, with respect to last report. CLP means “current Linux Percent”, as given by last logged data, and DD means domination day (in YYYY-MM-DD format), and DCLP means “difference in CLP”, with respect to last logged data. I have dropped the “Confidence” column, for it gave little or no info.

Except for the good news that Einstein@home has succumbed to the Linux hordes, the numbers (again) seem quite discouraging, but the data is what it is. All CLPs but MalariaControl have gone up (which goes down less than in previous report). The Linux tide seems unstoppable, however its forward speed is not necessarily high.

As promised, today I’m showing the plots for Rosetta@home, in next issue Spinhenge@home.

Number of hosts percent evolution for Rosetta@home (click to enlarge)

Accumulated credit percent evolution for Rosetta@home (click to enlarge)

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Apparently a 40% of the visitors or the Koonsolo site use Windows, vs less than 23% for Linux. However, despite the majority of visitors using Windows (there are even more Mac visitors than Linux ones), the Linux version sales amount to a 34% of the total sales, whereas Windows sales are only 23%. Visit the site for some more numbers and comments.

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In the following data T2D means “time to domination” (the expected time for Windows/Linux shares to cross, counting from the present date). DT2D means difference (increase/decrease) in T2D, with respect to last report. CLP means “current Linux Percent”, as given by last logged data, and DD means domination day (in YYYY-MM-DD format).

The numbers (again) seem quite discouraging, but the data is what it is. All CLPs but MalariaControl have gone up, with Spinhenge going up by almost a 0.4% in 3 months. The Linux tide seems unstoppable, however its forward speed is not necessarily high.

As promised, today I’m showing the plots for QMC@home, in next issue Rosetta@home.

Number of hosts percent evolution for QMC@home (click to enlarge)

Accumulated credit percent evolution for QMC”home (click to enlarge)

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This stupid inability of Windows to read any of the many formats Linux can use gives rise to problems for not only Windows users, but also Linux users. For example, when I format my external hard disks or pendrives, I end up wondering if I should reserve some space for a FAT partition, so I could put there data to share with hypothetical Windows users I could lend the disk to. And, seriously, I abhor wasting my hardware with such lousy file systems, when I could use Linux ones.

Anyway, there are some third-party tools to help us which such a task. I found at least two:

• Ext2IFS
• ext2fsd

I have used the first one, but as some blogs point out (e.g. BloggUccio), ext2fsd is required if the inode size is bigger than 128 B (256 B in some modern Linux distros).

Getting Ext2IFS

It is a simple exe file you can download from fs-driver.org. Installing it consists on the typical windows next-next-finish click-dance. In principle the defaults are OK. It will ask you about activating “read-only” (which I declined. It’s less safe, but I would like to be able to write too), and something about large file support (which I accepted, because it’s only an issue with Linux kernels older than 2.2… Middle Age stuff).

Formatting the hard drive

In principle, Ext2IFS can read ext2/ext3 partitions with no problem. In practice, if the partition was created with an inode size of more than 128 bytes, Ext2IFS won’t read it. To create a “compatible” partition, you can mkfs it with the -I flag, as follows:

I found out about the 128 B inode thing from this forum thread [es].

Practical use

What I have done, and tested, is what follows: I format my external drives with almost all of it as ext3, as described, leaving a couple of gigabytes (you could cut down to a couple of megabytes if you really want to) for a FAT partition. Then copy the Ext2IFS_1_11a.exe executable to that partition.

Whenever you want to use that drive, Linux will see two partitions (the ext3 and the FAT one), the second one of which you can ignore. From Windows, you will see only a 2GB FAT partition. However, you will be able to open it, find the exe, double-click, and install Ext2IFS. After that, you can unplug the drive and plug it again…et voilà, you will see the ext3 partition just fine.

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Apparently Phenom processors had the ability to scale the CPU frequency independently for each core in multicore systems. Now, Phenom II processors lack this feature: the CPU frequency can be scaled, but all cores must share the same frequency.

Did this happen because of technical reasons? AMD thought it was better to do it? No. As Wikipedia says:

Another change from the original Phenom is that Cool ‘n Quiet is now applied to the processor as a whole, rather than on a per-core basis. This was done in order to address the mishandling of threads by Windows Vista, which can cause single-threaded applications to run on a core that is idling at half-speed.

The situation is explained in an article in anandtech.com, where the author mistakes an error on Vista’s account with an error in the Phenom processor (bolding of text is mine):

In theory, the AMD design made sense. If you were running a single threaded application, the core that your thread was active on would run at full speed, while the remaining three cores would run at a much lower speed. AMD included this functionality under the Cool ‘n’ Quiet umbrella. In practice however, Phenom’s Cool ‘n’ Quiet was quite flawed. Vista has a nasty habit of bouncing threads around from one core to the next, which could result in the following phenomenon (no pun intended): when running a single-threaded application, the thread would run on a single core which would tell Vista that it needed to run at full speed. Vista would then move the thread to the next core, which was running at half-speed; now the thread is running on a core that’s half the speed as the original core it started out on.

Phenom II fixes this by not allowing individual cores to run at clock speeds independently of one another; if one core must run at 3.0GHz, then all four cores will run at 3.0GHz. In practice this is a much better option as you don’t run into the situations where Phenom performance is about half what it should be thanks to your applications running on cores that are operating at half speed. In the past you couldn’t leave CnQ enabled on a Phenom system and watch an HD movie, but this is no longer true with Phenom II.

Recall how the brilliant author ascribes the “flaw” to CnQ, instead of to Vista, and how it was AMD who “fixed” the problem!

The plain truth is that AMD developed a technology (independent core scaling) that would save energy (which means money and ecology) with zero-effects on performance (since the cores actually running jobs run at full speed), and MS Vista being a pile of crap forced them to revert it.

Now, if you have a computer with 4 or 8 cores, and watch a HD movie (which needs a full-speed core to decode it, but only one core), the full 8 cores will be running at full speed, wasting power, producing CO₂, and making you get charged money at a rate 8 times that actually required!

The obvious right solution would be to fix Vista so that threads don’t dance from core to core unnecessarily, so that AMD’s CnQ technology could be used to full extent. AMD’s movement with Phenom II just fixed the performance problem, by basically destroying the whole point of CnQ.

Now take a second to reflex how the monstrous domination of MS over the OS market leads to problems like this one. In a really competitive market, if a stupid OS provider gets it wrong and their OS does not support something like CnQ properly, the customers will migrate to other OSs, and the rogue provider will be forced to fix their OS. The dominance of MS (plus their stupidity), just held back precious technological advances!

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In the following data T2D means “time to domination” (the expected time for Windows/Linux shares to cross, counting from the present date). DT2D means difference (increase/decrease) in T2D, with respect to last report. CLP means “current Linux Percent”, as given by last logged data, and DD means domination day (in YYYY-MM-DD format).

For the first time, data for PrimeGrid is included.

Mmm, the numbers seem quite discouraging, but the data is what it is. On the bright side, all CLPs have gone up, some almost a 0.3% in 3 months. The Linux tide seems unstoppable, however its forward speed is not necessarily high.

As promised, today I’m showing the plots for PrimeGrid, in next issue QMC@home.

Number of hosts percent evolution for PrimeGrid (click to enlarge)

Accumulated credit percent evolution for PrimeGrid (click to enlarge)

Related posts

• LWD – October (0)
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As usual D2D means “days to domination” (the expected time for Windows/Linux shares to cross, counting from the present date), and DD2D means difference (increase/decrease) in D2D, with respect to last report. CLP means “current Linux Percent”, as given by last logged data, and DD means domination day (in YYYY-MM-DD format).

As promised, today I’m showing the plots for POEM@home, in next issue Prime@home.

Number of hosts percent evolution for POEM@home (click to enlarge)

Accumulated credit percent evolution for POEM@home (click to enlarge)

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The speaker had his talk in PDF format, really standard and portable. The organizers provided him with a Windows machine, with Acrobat Pro installed (apparently). He tried to open the file with it, but it turns out the license for Acrobat had expired, so the computer refused to open the file. How horribly full of shit is that? There are thousands of free (and/or freeware) programs out there to read PDFs, so why was the poor speaker forced to use another computer just for the task? This would have never happened, obviously, had the organizers been using free software.

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I have some random thought to write down, and my lately little-attended blog seems the right place to do so.

Random thought of the moment: everyone, I mean every boy and girl and their pets, has a laptop. Everyone listens to talks with a laptop in their knees. Also, an amazing fraction of these (from 1 in 4 to 1 in 3, maybe) are Macs. The Linux machines are also relatively abundant, although a sad majority of laptops seems to run Windows.

Might this mean that techies favor Apple? Maybe it just means that geeks can also be posh, as shown by the equally high amount of iPhones I’ve seen around.

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