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KernelTrap.org: Native POSIX Threading Library (NPTL)

Sep 23, 2002, 11:30 (11 Talkback[s])

[ Thanks to Jeremy Andrews for this link. ]

"Ulrich Drepper recently announced the first public release of the Red Hat sponsored 'Native POSIX Thread Library' (NPTL). He explained, 'Unless major flaws in the design are found this code is intended to become the standard POSIX thread library on Linux system and it will be included in the GNU C library distribution.'

"One test mentioned in Ulrich's email--running 100,000 concurrent threads on an IA-32--generated some interesting discussion. Ingo Molnar explained that with the current stock 2.5 kernel such a test requires roughly 1GB RAM, and the act of starting and stopping all 100,000 threads in parallel takes only 2 seconds. In comparison, with the 2.5.31 kernel (prior to Ingo's recent threading work), such a test would have taken around 15 minutes..."

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