OS Builder/Run on XO hardware/Experiences: Difference between revisions
Jump to navigation
Jump to search
(Created page with 'Some sample experiences showing the performance of olpc-os-builder on XO hardware. == 2013-07-29, XO-4, 2GB RAM, 4GB SWAP, 500GB USB HDD, 13.2.0 == Build took 31 minutes. # t…') |
(Added measurements for XO-4, 1GB) |
||
Line 25: | Line 25: | ||
* no sugar |
* no sugar |
||
* a warm file cache (timing of a subsequent run, not an initial run) |
* a warm file cache (timing of a subsequent run, not an initial run) |
||
== 2013-12-11, XO-4, 1GB RAM, 1GB SWAP, 294 USB HDD, 13.2.0 == |
|||
The build took 49 minutes. |
|||
Configuration file: http://wiki.laptop.org/go/File:Olpc-os-13.2.0-xo4.ini |
|||
Hardware performance measurements: |
|||
* internal eMMC, sequential read, 32 MB/s, (operating system), |
|||
* USB HDD, sequential read, 28 MB/s, (osbuilder filesystem), |
|||
* external SD, sequential read, 9.45 MB/s, (swap), |
|||
Performance tweaks: |
|||
* make_tree_tarball=0 |
|||
* a warm file cache (timing of a subsequent run, not an initial run), called with --cache-only flag |
|||
== 2013-07-30, XO-1.75, 1GB RAM, no SWAP, 500GB USB HDD, 13.2.0 == |
== 2013-07-30, XO-1.75, 1GB RAM, no SWAP, 500GB USB HDD, 13.2.0 == |
Revision as of 09:36, 13 December 2013
Some sample experiences showing the performance of olpc-os-builder on XO hardware.
2013-07-29, XO-4, 2GB RAM, 4GB SWAP, 500GB USB HDD, 13.2.0
Build took 31 minutes.
# time ./osbuilder.py examples/olpc-os-13.2.0-xo4.ini ... real 30m55.275s user 12m42.790s sys 2m8.370s
Configuration file: http://dev.laptop.org/~quozl/z/1V3fiW.txt
Hardware performance measurements:
- internal eMMC, sequential read, 49 MiB/s, (operating system),
- internal eMMC, filesystem write, 13.7 MiB/s,
- USB HDD, sequential read, 27 MiB/s, (osbuilder filesystem),
- USB HDD, filesystem write, 27 MiB/s,
- external SD, sequential read, 15 MiB/s, (swap),
Performance tweaks:
- versioned_fs=0
- make_tree_tarball=0
- no sugar
- a warm file cache (timing of a subsequent run, not an initial run)
2013-12-11, XO-4, 1GB RAM, 1GB SWAP, 294 USB HDD, 13.2.0
The build took 49 minutes.
Configuration file: http://wiki.laptop.org/go/File:Olpc-os-13.2.0-xo4.ini
Hardware performance measurements:
- internal eMMC, sequential read, 32 MB/s, (operating system),
- USB HDD, sequential read, 28 MB/s, (osbuilder filesystem),
- external SD, sequential read, 9.45 MB/s, (swap),
Performance tweaks:
- make_tree_tarball=0
- a warm file cache (timing of a subsequent run, not an initial run), called with --cache-only flag
2013-07-30, XO-1.75, 1GB RAM, no SWAP, 500GB USB HDD, 13.2.0
Build took 43 minutes.
# time ./osbuilder.py examples/olpc-os-13.2.0-xo1.75.ini ... real 43m13.025s user 23m44.010s sys 4m17.620s
Configuration file: http://dev.laptop.org/~quozl/z/1V3xjq.txt
Hardware performance measurements:
- internal eMMC, sequential read, 27.8 MiB/s, (operating system),
- internal eMMC, filesystem write, 7.38 MiB/s,
- USB HDD, sequential read, 27.5 MiB/s, (osbuilder filesystem),
- USB HDD, filesystem write, 27 MiB/s,
Performance tweaks:
- versioned_fs=0
- make_tree_tarball=0
- no sugar
- a warm file cache (timing of a subsequent run, not an initial run)
2013-07-30, XO-1.5, 1GB RAM, no SWAP, 500GB USB HDD, 13.2.0
Build took 39 minutes.
# time ./osbuilder.py examples/olpc-os-13.2.0-xo4.ini ... real 38m50.632s user 21m16.550s sys 2m58.560s
Configuration file: http://dev.laptop.org/~quozl/z/1V3vxy.txt
Hardware performance measurements:
- internal microSD, sequential read, 18.2 MiB/s, (operating system),
- internal microSD, filesystem write, 6.23 MiB/s,
- USB HDD, sequential read, 32 MiB/s, (osbuilder filesystem),
- USB HDD, filesystem write, 29.4 MiB/s,
Performance tweaks:
- versioned_fs=0
- make_tree_tarball=0
- no sugar
- a warm file cache (timing of a subsequent run, not an initial run)