Bug? Last memory segment php#7 is getting overloaded and high OOMs, other segments are underutilized

[Jakob Wildrain]

3.2.0 - Cacher

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CacherCoveragerDiagnosis

 

SummaryList PHPList Var Data

Caches

Cache	Slots	Size	Avail	Percent Graph	Operations	Status	Hits	Hits*24H	Hits/H	Hits/S	Updates	Skips	OOMs	Errs	Protected	Cached	Deleted	GC
php#0	8.00 K	16.00 M	5.01 M			Normal	45,978		1,915.75	15.00	171	0	0	0	no	168	0
php#1	8.00 K	16.00 M	7.16 M			Normal	36,007		1,500.29	12.80	125	0	0	0	no	124	0
php#2	8.00 K	16.00 M	3.31 M			Normal	35,027		1,459.46	10.20	137	0	0	0	no	137	0
php#3	8.00 K	16.00 M	5.27 M			Normal	42,909		1,787.88	13.40	162	0	0	0	no	162	0
php#4	8.00 K	16.00 M	4.14 M			Normal	33,725		1,405.21	10.40	141	3	0	0	no	140	0
php#5	8.00 K	16.00 M	2.26 M			Normal	40,884		1,703.50	13.20	169	0	0	0	no	162	0
php#6	8.00 K	16.00 M	4.02 M			Normal	43,088		1,795.33	12.80	142	2	0	0	no	142	0
php#7	8.00 K	16.00 M	4.75 K			Normal	37,937		1,580.71	12.80	1,948	8	731	0	no	1,830	3
Total	64.00 K	128.00 M	31.17 M			-	315,555		13,148.13	100.60	2,995	13	731	0	-	2,865	3
var#0	8.00 K	16.00 M	10.27 M			-	41,653		1,735.54	35.20	31,480	0	58	0	no	2,723	0	149
var#1	8.00 K	16.00 M	11.48 M			-	40,456		1,685.67	35.60	3,287	0	0	0	no	2,632	0	149
var#2	8.00 K	16.00 M	11.07 M			-	41,586		1,732.75	35.20	3,205	0	0	0	no	2,570	0	149
var#3	8.00 K	16.00 M	11.42 M			-	40,262		1,677.58	40.80	3,347	0	0	0	no	2,681	0	149
var#4	8.00 K	16.00 M	11.92 M			-	38,842		1,618.42	35.20	3,197	0	0	0	no	2,496	0	149
var#5	8.00 K	16.00 M	7.16 M			-	41,784		1,741.00	36.00	65,801	0	0	0	no	2,613	0	149
var#6	8.00 K	16.00 M	11.62 M			-	36,736		1,530.67	36.40	3,363	0	0	0	no	2,668	0	149
var#7	8.00 K	16.00 M	11.49 M			-	39,910		1,662.92	36.00	3,216	0	0	0	no	2,571	0	149
Total	64.00 K	128.00 M	86.42 M			-	321,229		13,384.54	290.40	116,896	0	58	0	-	20,954	0

Legends:

  

% Used

  

Used Blocks

  

Hits

Module Info

XCache

XCache Version	3.2.0
Modules Built	cacher optimizer coverager

Directive	Local Value	Master Value
xcache.coredump_directory	no value	no value
xcache.disable_on_crash	Off	Off
xcache.experimental	Off	Off
xcache.test	Off	Off

XCache Cacher

XCache Cacher Module	enabled
Readonly Protection	disabled
Page Request Time	2015-11-18 09:00:10
Cache Init Time	2015-11-18 06:12:13
Cache Instance Id	20013
Opcode Cache	enabled, 134,217,728 bytes, 8 split(s), with 8192 slots each
Variable Cache	enabled, 134,217,728 bytes, 8 split(s), with 8192 slots each
Shared Memory Schemes	mmap

Directive	Local Value	Master Value
xcache.admin.enable_auth	On	On
xcache.allocator	bestfit	bestfit
xcache.cacher	On	On
xcache.count	8	8
xcache.gc_interval	0	0
xcache.mmap_path	/tmp/xcache	/tmp/xcache
xcache.readonly_protection	Off	Off
xcache.shm_scheme	mmap	mmap
xcache.size	128M	128M
xcache.slots	8K	8K
xcache.stat	On	On
xcache.ttl	0	0
xcache.var_allocator	bestfit	bestfit
xcache.var_count	8	8
xcache.var_gc_interval	300	300
xcache.var_maxttl	0	0
xcache.var_namespace	no value	no value
xcache.var_namespace_mode	0	0
xcache.var_size	128M	128M
xcache.var_slots	8K	8K
xcache.var_ttl	0	0

XCache Coverager

XCache Coverager Module	enabled
Coverage Started	Off

Directive	Local Value	Master Value
xcache.coveragedump_directory	no value	no value
xcache.coverager	Off	Off
xcache.coverager_autostart	On	On

XCache Optimizer

XCache Optimizer Module

enabled

Directive	Local Value	Master Value
xcache.optimizer	On	On

PHP 5.6.14 Powered By: XCache 3.2.0, cacher optimizer coverager

[Xuefer]

it could be one of the big php is distributed to php#7 which take a lot of cache memory. XCache can't split 1 php into multiple php#x cache