---------- Forwarded message ---------- From: Tiago Marques <tiago...@gmail.com> Date: Sat, May 16, 2009 at 6:18 PM Subject: Re: The XO-1.5 software plan. To: b...@alum.mit.edu
On Sat, May 16, 2009 at 5:41 PM, Benjamin M. Schwartz < bmsch...@fas.harvard.edu> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Chris Ball wrote: > > We have some good news: OLPC has decided to base its software release > > for the new XO-1.5 laptop on Fedora 11. Unlike previous releases, we > > plan to use a full Fedora desktop build, booting into Sugar but giving > > users the option to switch into a standard GNOME install instead. > > (This will mostly be useful for older kids in high school.) > > > > I'm particularly happy about this plan because it will allow us to > > catch up with the awesome work present in the Sugar community's most > > recent release, Sugar 0.84, as well as merging the latest Fedora work > > and including GNOME into the mix for the first time. The new machines > > will have 1GB of RAM and 4GB of flash, so we have enough room for both > > environments at once. > Hi, Where does rainbow and bitfrost come in all of this? > > This raises an interesting question: should we still be using a compressed > filesystem? On the XO-1, an uncompressed FS was essentially not an > option. There would be almost no space left for users' files after the > uncompressed system files. Unfortunately, this causes tremendous > slowdowns all over the system, as it causes reads from flash to (a) be > CPU-limited, and (b) compete with the rest of the system for CPU time. > Writes are even worse. > > On the 1.5, we will have more space (so less need for compression), but > more system files, and also more CPU to handle it. I think we should > remember to test the final images both with and without compression. > The 1GHz C7 is still a slow cpu, as it seems from reviews of similar netbooks: http://www.notebookreview.com/default.asp?newsID=4352 For most tasks it is slower than an 600MHz Celeron M and that's not exactly fast. Does anyone more familiar with the hardware have any idea of how fast it is when compared to the Geode? > > Of course, this equation gets still more complicated depending on whether > we have MTD or FTL flash. Choosing a filesystem will be an interesting > exercise. Is MTD still up for discussion? Wasn't it going to be FTL? Best regards, Tiago Marques > > > - --Ben > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.11 (GNU/Linux) > > iEYEARECAAYFAkoO7LkACgkQUJT6e6HFtqTH/QCfYUitcwLq8bTF2E1g+rbwyfa8 > t1sAoIcQ0FXXm16GlFriJ1A2n+Bv4Fe1 > =v9fu > -----END PGP SIGNATURE----- > _______________________________________________ > Devel mailing list > Devel@lists.laptop.org > http://lists.laptop.org/listinfo/devel >
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