Michael Tsai on Twitter: "@rosyna @ameaijou @danielpunkass That’s the thing—you would think that, but it doesn’t seem to."

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Daniel Jalkut ‏@danielpunkass Mar 17

@mjtsai The Time Machine "low priority" thing is interesting. At first blush, I think it affects restore, too? It’s always IMPOSSIBLY slow…
Daniel Jalkut ‏@danielpunkass Mar 17

@mjtsai I always assumed it was a network latency thing, but it appears it was far more about the damned CPU priority. Ugh!
Michael Tsai ‏@mjtsai Mar 17

@danielpunkass Nope, Time Machine has always been much slower for local backups, too.
Rosyna Keller ‏@rosyna Mar 17

@mjtsai @danielpunkass I believe it's intentional, so actions after OS X updates remain responsive. Also affects Spotlight, cache rebuilding
Rosyna Keller ‏@rosyna Mar 17

@mjtsai @danielpunkass Otherwise Mac OS X becomes *totally* unusable for over an hour after updates are installed. Low priority I/O fixes it
1 like
Gwynne Raskind ‏@ameaijou Mar 17

@rosyna @mjtsai @danielpunkass Yes, but I do agree it should be tunable for Time Machine - the time differential is O(2^n) or worse.
1 like
Rosyna Keller ‏@rosyna Mar 17

@ameaijou @mjtsai @danielpunkass Indeed. But would that happen naturally when no other I/O is occurring on the system?

‏@mjtsai

@rosyna @ameaijou @danielpunkass That’s the thing—you would think that, but it doesn’t seem to.

4:28 PM - 17 Mar 2016

Michael TsaiVerified account