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http://gentoo-wiki.com/HOWTO_Migrate_to_NPTL |
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http://gentoo-wiki.com/HOWTO_Gentoo_2004.2_for_linux_2.6_and_NPTL |
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http://gentoo-wiki.com/HOWTO_Install_Gentoo_-_The_Gentoo_Developers_Method_with_NPTL_and_2.6_from_Stage1 |
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radu herinean wrote: |
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>I was just following the conversation but I am convinced now. |
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>For the record, I am running two "pretty regular" web-oriented servers: |
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>web, db, email, lists, dns, some low band streaming, no fileserving and |
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>no nat or any type of routing. |
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> |
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>I've used nptl before, but I gave up because I had some problems running |
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>turck-mmcache on a nptl-only apache. |
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>Since mmcache is obsolete and not used on the server anymore I see no |
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>problem switching back to a nptl-only environment. |
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> |
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>Although I think I know all the steps I am supposed to do, I would |
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>really appreciate it if some would point out the "migration" steps, just |
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>in case I don't miss some important stage. |
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> |
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>Thank you guys. |
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> |
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>-----Original Message----- |
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>From: J. Ryan Earl [mailto:ryan@×××××××××××××××.com] |
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>Sent: 10 august 2005 18:44 |
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>To: gentoo-server@l.g.o |
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>Subject: Re: [gentoo-server] nptl |
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> |
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> |
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>Billy Holmes wrote: |
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> |
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>>This makes it easier and faster for the kernel to context switch |
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>>between processes (and threads within a process). |
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>> |
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>>A prime example of this is a test from the LKML, where Ulrich Drepper |
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>>wrote he was able to start and stop 100,000 threads in about 2 |
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>>seconds. In further messages, Ingo Molnar confirms this and also |
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>>points out that before these changes, it would have taken upwards to |
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>>15 minutes for the same thing. |
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>> |
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>>http://kerneltrap.org/node/422 |
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> |
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> |
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>Absolutely true. NPTL is drastically more scalable than linuxthreads. |
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>For instance, spawn 1000 worker threads in a JVM and the scheduling |
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>overhead alone will cause the system to become unresponsive across the |
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>board. Use NPTL and you can get 10000 threads all running no problem. |
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> |
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>-ryan |
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