| Info | Message |
|---|---|
| 1) Message boards : Questions and problems : Can I reduce I/O using memory?
Message 75403 Posted 20 Jan 2017 by Vort |
...What if you set the checkpoint time to 24 hours? I am running Ubuntu server 24/7 on a Single board computer that uses an SD card as a hard drive. I don't halt it at all, just reboot once a month or two. Some years ago I installed and run i2p https://en.wikipedia.org/wiki/I2P on it. After installing on the SD card I copied its directories to RAM (to /var/run/ which is tmpfs https://en.wikipedia.org/wiki/Tmpfs) and redirected the input/output operations to them by a symbolic link. This way i2p ran totally in RAM, even the symbolic link was read from there ;). Once a day or two I manually copied these working directories to the SD card after suspending the program. Had no problems. |
| 2) Message boards : Questions and problems : Specific hardware vs. specific Project question, better ask here or "there"?
Message 75149 Posted 9 Jan 2017 by Vort |
Things become much clearer now, thank you both! I'll try to follow Juha's recommendations. |
| 3) Message boards : Questions and problems : Specific hardware vs. specific Project question, better ask here or "there"?
Message 75042 Posted 1 Jan 2017 by Vort |
I'd like to install and run a BOINC project that I didn't choose yet. Never did it before. My choice of the project will depend on whether it will run on my hardware/software (me having some demands too) or not. So I'm wondering where it is better to start my help thread: here in the main BOINC forum or "there" in the project forum? Hardware: Odroid U3 ARM single board computer with 1.7GHz Quad-Core processor and 2GByte RAM, SD cart serving as hard disk ;) http://www.hardkernel.com/main/products/prdt_info.php?g_code=g138745696275&tab_idx=2 passive chip cooling. Running behind a TP-Link router. OS: Linux-Ubuntu Welcome to Ubuntu 14.04 LTS (GNU/Linux 3.8.13.30 armv7l) System information as of Fri Dec 30 07:55:25 EET 2016 System load: 0.0 Processes: 83 Usage of /: 29.0% of 3.00GB Users logged in: 1 Memory usage: 7% IP address for eth0: 192.168.1.101 Swap usage: 0% It is running headless (no GUI, command line interface) 24/7 and I use it as a Tor middle relay https://www.torproject.org/docs/tor-relay-debian.html.en It's not CPU-expensive, most of the time less than 1% load, so I can spare cycles to BOINC. I'd like to run a project with command line interface, input/output disk operations made in RAM if possible (saving SD-card lifespan) with the possibility of limiting the CPU load because of the passive CPU cooling . Thank you. |
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