Mismatch between v$filestat and v$sysstat

From: Allen, Brandon <Brandon.Allen_at_OneNeck.com>
Date: Mon, 31 Oct 2005 10:47:47 -0700
Message-ID: <04DDF147ED3A0D42B48A48A18D574C4503D3FC06@NT15.oneneck.corp>

Why doesn't sum(phyrds) from v$filestat match 'physical reads' from v$sysstat?

SQL>select sum(phyrds) from v$filestat;

  SUM(PHYRDS)

---

    9,674,425

SQL>select value from v$sysstat where statistic# = (select statistic# from v$statname where name = 'physical reads');

       VALUE

---

  56,952,459

Version and OS doesn't seem to matter since I've gotten similar results on multiple configurations (8.0.6, 8.1.7.3, 9.2.0.6, HPUX and Windows). I figure I'm just having a brain fart and forgetting an obvious ingredient to the formula. Any ideas?

Thanks,
Brandon

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http://www.freelists.org/webpage/oracle-l Received on Mon Oct 31 2005 - 11:48:33 CST