Re: [HACKERS] Add on_perl_init and proper destruction to plperl [PATCH]

2010-01-27 Thread Frank Ch. Eigler
Tom Lane t...@sss.pgh.pa.us writes: [...] Lastly, an atexit trigger will still fire during FATAL or PANIC aborts, which scares me even more. When the house is already afire, it's not prudent to politely let user-written perl code do whatever it wants before you get the heck out of there.

Re: [HACKERS] [PATCH] dtrace probes for memory manager

2009-12-10 Thread Frank Ch. Eigler
Zdenek Kotala zdenek.kot...@sun.com writes: [...] + header = (StandardChunkHeader *) + ((char *) ret - STANDARDCHUNKHEADERSIZE); + +// TRACE_POSTGRESQL_MCXT_ALLOC(context-name, context, size, header-size, true); + [...] If the dormant overhead of these probes is

Re: [HACKERS] [PATCH] dtrace probes for memory manager

2009-12-10 Thread Frank Ch. Eigler
Hi - On Thu, Dec 10, 2009 at 09:33:28PM +0100, Zdenek Kotala wrote: [...] If the dormant overhead of these probes is measured or suspected to be excessive, consider using the dtrace-generated per-probe foo_ENABLED() conditional, or a postgres configuration global thusly: [...]

Re: [HACKERS] Dtrace probes documentation

2009-06-01 Thread Frank Ch. Eigler
Tom Lane t...@sss.pgh.pa.us writes: [...] See http://blog.endpoint.com/2009/05/postgresql-with-systemtap.html for details. Perhaps it's worth noting in the documentation that SystemTap users will need to use the double-underscore version? I think a better solution is to persuade the

[HACKERS] Re: MS interview

2001-08-15 Thread Frank Ch. Eigler
[EMAIL PROTECTED] (Tim Allen) writes: : [...] Near the end he gets specifically asked about Red Hat : Database as a competitive threat, and he responds that he doesn't : think anyone can match their investment of 800 professionals to : work on SQL Server. [...] It would be naive to dismiss

[HACKERS] Re: Idea: recycle WAL segments, don't delete/recreate 'em

2001-07-17 Thread Frank Ch. Eigler
tgl wrote: : [...] (We have to physically fill each segment with zeroes to : ensure that the system has actually allocated a whole 16MB to it; : otherwise we fall victim to the hole-saving allocation technique : of most Unix filesystems.) [...] Could you explain how postgresql can fall