Hi All, solaris 10 6/6, DL585 4x Opteron 880
We are facing high kernel cpu % during normale operation (gcc, mysql, ...)
For example:
CPU states: 45.6% idle, 11.8% user, 42.6% kernel, 0.0% iowait, 0.0% swap
Using DTrace during a simple compilation ( dtrace -n 'syscall:::entry {
@[probefunc] = count(); }' )
fstat 1
lwp_cond_signal 1
lwp_continue 1
lwp_create 1
lwp_exit 1
lwp_kill 1
mmap64 1
systeminfo 1
utimes 1
acl 2
pathconf 2
creat64 3
creat 4
getrlimit64 4
mprotect 4
lstat64 5
pset 6
chmod 10
lwp_cond_wait 11
sigsuspend 11
sigpending 15
dup 18
getcwd 19
umask 20
p_online 21
chdir 23
fsat 28
lwp_park 29
nanosleep 47
getdents64 56
rusagesys 59
gtime 72
pipe 80
open64 87
vfork 98
sigaltstack 149
unlink 149
schedctl 265
fork1 283
lwp_self 284
setpgrp 304
fcntl 367
rexit 381
sysi86 381
lseek 410
getgid 416
exece 467
getuid 489
memcntl 495
fstat64 546
pollsys 553
waitsys 579
getrlimit 617
llseek 669
setcontext 873
stat64 962
munmap 1065
sysconfig 1102
getpid 1105
ioctl 1274
resolvepath 1391
write 1755
lwp_sigmask 1926
access 2194
xstat 5887
fxstat 6981
mmap 7073
close 8538
read 8595
sigaction 9215
brk 13364
open 41829
any suggestion? thanks
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