Comments (3)
Note to self: always clear the disk cache before any measurement.
http://www.linuxatemyram.com/play.html
http://stackoverflow.com/questions/599719/how-to-clean-caches-used-by-the-linux-kernel
from gamma-speed.
Discussion on FITS table I/O speed on astropy-dev:
https://groups.google.com/d/msg/astropy-dev/zRIZ6rr4JPg/Qs9IHNTqKPAJ
from gamma-speed.
@jknodlseder We noticed that ctobssim
only writes FITS event lists at a few MB / s (see here). We expected one or two orders of magnitude faster based on this check.
Any idea why this is so slow or how to find the bottleneck or how to speed it up?
from gamma-speed.
Related Issues (19)
- Document benchmark computers
- Find/build tool for file acces log HOT 2
- install_ctools.py deadlocks HOT 2
- Make monitor work on Mac HOT 1
- Why is there 100% CPU usage during disk I/O?
- Pipeline issues
- Increased memory usage HOT 1
- Efficiency issues HOT 1
- Model and measure ctlike runtime HOT 1
- Why does the number of ``ctlike`` iterations depend on the number of threads used? HOT 2
- Make a GammaLib / ctools automatic benchmark suite
- Document compilers used HOT 1
- Check out Intel performance tools
- Write Python prototype parallel likelihood function
- Assess mpi4py
- Check out basic monitoring tools HOT 1
- Check out profiling tools HOT 1
- Understand optimizer algorithm
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from gamma-speed.