* [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 [-- Attachment #1: Type: text/plain, Size: 312 bytes --] 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 [-- Attachment #2: Type: text/html, Size: 394 bytes --] ^ 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 [-- Attachment #1: Type: text/plain, Size: 146 bytes --] Not quite what I was asking; I was asking about lock() / unlock() in libc being changed to use semacquire/semrelease (the syscalls)... -- vs [-- Attachment #2: Type: text/html, Size: 172 bytes --] ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2010-03-28 0:56 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 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
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).