* [9fans] Semaphores for libc Lock?
@ 2010-03-28 0:40 Venkatesh Srinivas
2010-03-28 0:52 ` Federico G. Benavento
0 siblings, 1 reply; 3+ messages in thread
From: Venkatesh Srinivas @ 2010-03-28 0:40 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
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Hi,
In Russ Cox's and Sape Mullender's 2008 IWP9 paper on semaphores in Plan 9,
they suggest that semaphore (semacquire/semrelease)-based locks in libc were
better than the current spinning ones; they note that the locks would be
replaced in the distribution soon.
Is that still in the cards?
-- vs
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [9fans] Semaphores for libc Lock?
2010-03-28 0:40 [9fans] Semaphores for libc Lock? Venkatesh Srinivas
@ 2010-03-28 0:52 ` Federico G. Benavento
2010-03-28 0:56 ` Venkatesh Srinivas
0 siblings, 1 reply; 3+ messages in thread
From: Federico G. Benavento @ 2010-03-28 0:52 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
http://plan9.bell-labs.com/magic/man2html/2/semacquire
On Sat, Mar 27, 2010 at 9:40 PM, Venkatesh Srinivas <me@acm.jhu.edu> wrote:
> Hi,
> In Russ Cox's and Sape Mullender's 2008 IWP9 paper on semaphores in Plan 9,
> they suggest that semaphore (semacquire/semrelease)-based locks in libc were
> better than the current spinning ones; they note that the locks would be
> replaced in the distribution soon.
> Is that still in the cards?
> -- vs
>
--
Federico G. Benavento
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [9fans] Semaphores for libc Lock?
2010-03-28 0:52 ` Federico G. Benavento
@ 2010-03-28 0:56 ` Venkatesh Srinivas
0 siblings, 0 replies; 3+ messages in thread
From: Venkatesh Srinivas @ 2010-03-28 0:56 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
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Not quite what I was asking; I was asking about lock() / unlock() in libc
being changed to use semacquire/semrelease (the syscalls)...
-- vs
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2010-03-28 0:40 [9fans] Semaphores for libc Lock? Venkatesh Srinivas
2010-03-28 0:52 ` Federico G. Benavento
2010-03-28 0:56 ` Venkatesh Srinivas
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