I was checking the realtime performance on various distros i have on my machine and tweaking to get it better. So far, the best performing distro I have installed is 64 Studio 3 Beta (compared to AVLinux 2r2, sidux 2009-02 with rt kernel, and Ubuntu Studio 9.10). However, it amazes me to find out that, when I ran the realTimeConfigQuickScan.pl script on 64 Studio, it says that the system can't find /dev/rtc.
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angelsguitar@64studio:~$ ./realTimeConfigQuickScan.pl
Checking if you are root... no - good.
Finding current kernel config... found /proc/config.gz.
Checking for Ingo Molnar's Real-Time Preemption... found - good.
Checking for high-resolution timers... found - good.
Checking for Generic PCI bus-master DMA support... not found.
** Kernel without Generic PCI bus-master DMA support
For more information, see:
- http://lowlatency.linuxaudio.org
Checking for 1000hz clock... found - good.
Checking for High Resolution Timers... found - good.
Checking filesystem types... ok.
Checking tmpfs mounted on /tmp.. not found.
** Warning: no tmpfs partition mounted on /tmp
For more information, see:
- http://wiki.linuxmusicians.com/doku.php?id=system_configuration#tmpfs
- http://lowlatency.linuxaudio.org
Checking filesystem 'noatime' parameter...
** Warning: /media/cdrom0 does not have the 'noatime' parameter set
For more information, see http://wiki.linuxmusicians.com/doku.php?id=system_configuration#filesystems
Checking the ability to prioritize processes with (re)nice... yes - good.
Checking the ability to prioritize processes with rtprio... yes - good.
Checking whether you're in the 'audio' group... yes - good.
Checking for multiple 'audio' groups... no - good.
Checking access to the real-time clock... not found.
** Warning: /dev/rtc not found.
Checking sysctl settings:
- checking inotify max_user_watches... >= 524288 - good.
Checking for resource-intensive background processes... none found - good.