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Is there a "ionice" command equivalent on mac?


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#1
flynth

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Hi everyone,

Thanks to this forum over the course of last few days I've managed to install os x 10.5.2(+5.3 update) on my Philips X53 Laptop(everything apart from wireless(intel 3945) and sleep works). I've also installed Vmware Fusion and previously on Linux I used to run Vmware trough a ionice command to lower its disk scheduling priority so I can browse the Internet comfortably while windows is booting or does other io-intensive things, but I've just found out there is no ionice on mac os. Is there an equivalent command to prioritize one process disk access over another? "nice" and "renice" commands affect only cpu scheduling.

My hardware details if anyone's interested are:
Philips X53 laptop with: Core Duo 1.6GHz CPU, 1GB RAM, Intel GMA945 graphics, SATA HDD, Intel builtin audio (based on a Realtek), Realtek 8139 NIC, Intel 3945 WIFI. I've installed using modified version of the Kalyway 10.5.2 DVD(the realtek LAN card driver on the original DVD caused the installer to freeze). Also I had to get rid of the ACPI_SMC plugin as it caused kernel panics on boot, and I used GMA950 driver found somewhere on this forum to get access to all resolutions supported by the hardware. Apart from the minor issue with USB and sleep mode everything else is working great. Thanks!

#2
flynth

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Anyone?

Seriously, I can't believe such a polished operating system can have no command to change disk access priority :wacko:

#3
flynth

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OK. I've found out nice and renice actually do set the IO scheduling priority on Mac OS. So a separate ionice command is not needed. My faith in the Mac OS is restored :o

#4
PacoBell

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OK. I've found out nice and renice actually do set the IO scheduling priority on Mac OS. So a separate ionice command is not needed. My faith in the Mac OS is restored :unsure:

Really, it does? I don't see any mention of that in either man page. Documentation link?

Never mind, found it.

#5
kocoman

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is there CLI of this and not function call?  thx







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