On Sat, 9 Jun 2012 12:07:40 +0300 Konstantin Belousov wrote: KB> Well, if I see a report informing me that some 2M region contains 512 super KB> pages, how should I interpret it ? For me, it is only one superpage (mapping) KB> that can be created in one 2M region.
Well, if I see a report like below: PID START END PRT RES PRES SUP REF SHD FL TP PATH 48568 0x800c00000 0x820c00000 rw- 131072 0 51712 2 0 --S df it tells me that for the region 0x800c00000-0x820c00000 (512Mb) we have 131072 * 4k = 512Mb resident and 51712 * 4k = 202Mb (a litle less than a half of the region) promoted (mapped) to superpages. If I had number of superpages here I would need additional knowledge (a superpage size) to calculate how effectively superpages are used. But actually, no much difference for me. To get a number of superpages is it enough just to divide the result obtained counting normal-sized pages by (2M/4k) factor? -- Mikolaj Golub _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
