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Re: [v9.1] sepgsql - userspace access vector cache

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Kohei KaiGai <kaigai@kaigai.gr.jp>
Cc: PgHacker <pgsql-hackers@postgresql.org>
Date: 2011-06-13T12:12:18Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Remove the limit on the number of entries allowed in catcaches, and

On Mon, Jun 13, 2011 at 7:51 AM, Kohei KaiGai <kaigai@kaigai.gr.jp> wrote:
> For syscache, length of a typical security label in selinux is
> less than 64 bytes. If we assume an entry consume 128bytes
> including Oid pairs or pointers, its consumption is 128KBytes
> per 1,000 of tables or others.
> (Do we have a way to confirm syscache status?)

I was thinking you might start a new session, SELECT pg_backendd_pid()
to get the PID, use top/ps to get its memory usage; then do a bunch of
stuff and see how much it's grown.  The difference between how much it
grows with and without the patch is the amount of additional memory
the patch consumes.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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