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RE: [Patch] Optimize dropping of relation buffers using dlist - Mailing list pgsql-hackers

From tsunakawa.takay@fujitsu.com
Subject RE: [Patch] Optimize dropping of relation buffers using dlist
Date
Msg-id TYAPR01MB29906F13FE844267A8B279E7FE350@TYAPR01MB2990.jpnprd01.prod.outlook.com
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In response to RE: [Patch] Optimize dropping of relation buffers using dlist  ("k.jamison@fujitsu.com" <k.jamison@fujitsu.com>)
Responses RE: [Patch] Optimize dropping of relation buffers using dlist  ("k.jamison@fujitsu.com" <k.jamison@fujitsu.com>)
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From: Jamison, Kirk/ジャミソン カーク <k.jamison@fujitsu.com>
> Is my understanding above correct?

No.  I simply meant DropRelFileNodeBuffers() calls the following function, and avoids the optimization if it returns
InvalidBlockNumber.


BlockNumber
smgrcachednblocks(SMgrRelation reln, ForkNumber forknum)
{
    return reln->smgr_cached_nblocks[forknum];
}


Regards
Takayuki Tsunakawa

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