id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1645	Some questions about slab_stat module？	huifeidexingyuner@…		"Why is the number of pages calculated based on the end address minus the start address inconsistent with the total free space divided by the size of the page？

For example:
total:      466364(KB) free:      463576(KB) size:           4(KB)
pages:      463576(KB) start:00007FA613194000 end:00007FA62F65B000
slot:           8(Bytes) total:           0 used:           0 reqs:           0 fails:           0
slot:          16(Bytes) total:           0 used:           0 reqs:           0 fails:           0
slot:          32(Bytes) total:           0 used:           0 reqs:           0 fails:           0
slot:          64(Bytes) total:           0 used:           0 reqs:           0 fails:           0
slot:         128(Bytes) total:           0 used:           0 reqs:           0 fails:           0
slot:         256(Bytes) total:           0 used:           0 reqs:           0 fails:           0
slot:         512(Bytes) total:           0 used:           0 reqs:           0 fails:           0
slot:        1024(Bytes) total:           0 used:           0 reqs:           0 fails:           0
slot:        2048(Bytes) total:           0 used:           0 reqs:           0 fails:           0


(140351736492032 - 140351261720576) /4096 = 116479

463576 /4 = 115894

The two results are different？
"	defect	closed	minor		other	1.15.x	invalid			2.6.35.6 #1 SMP Fri Aug 17 05:05:27 EDT 2018 x86_64 GNU/Linux	1.4.7