Request information For Xcache settings

[Gokhan Tekin]

How should set 4GB Ram Core 2 Quad hosting's Xcache setings?
My settings is : server load: 10 i coul'nt make it less


could you help me for that ?
İ can't optimized on my settings. on This settings is " Load" side is high ? right ? what should i do for this problem
if you help me for that i will happy thank you for now


report :

[xcache]
; ini only settings, all the values here is default unless explained

; select low level shm/allocator scheme implemenation
xcache.shm_scheme =        "mmap"
; to disable: xcache.size=0
; to enable : xcache.size=64M etc (any size > 0) and your system mmap allows
xcache.size  =                256M
; set to cpu count (cat /proc/cpuinfo |grep -c processor)
xcache.count =                 4
; just a hash hints, you can always store count(items) > slots
xcache.slots =                8K
; ttl of the cache item, 0=forever
xcache.ttl   =                 7200
; interval of gc scanning expired items, 0=no scan, other values is in seconds
xcache.gc_interval =           300

; same as aboves but for variable cache
xcache.var_size  =            256M
xcache.var_count =             4
xcache.var_slots =            8K
; default ttl
xcache.var_ttl   =             7200
xcache.var_maxttl   =          14400
xcache.var_gc_interval =     300

xcache.test =                Off
; N/A for /dev/zero
xcache.readonly_protection = Off
; for *nix, xcache.mmap_path is a file path, not directory.
; Use something like "/tmp/xcache" if you want to turn on ReadonlyProtection
; 2 group of php won't share the same /tmp/xcache
; for win32, xcache.mmap_path=anonymous map name, not file path
xcache.mmap_path =    "/dev/zero"