Re: Long time to connect to MySQL server on sparc64

[MPrik]

I have no knowledge of the procces tracing. Can anybody explain me what this 
ktrace output represent, please? The man pages didn't help. The marked 
segment is probably that problem, the delay when connecting to mysql, 
because is repeated many times.
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9344 mysqld   RET   fcntl 6
9344 mysqld   CALL  setsockopt(0x16,0,0x3,0xfffffffffffd699c,0x4)
9344 mysqld   RET   setsockopt -1 errno 42 Protocol not available
9344 mysqld   CALL  gettimeofday(0xfffffffffffd69a0,0)
9344 mysqld   RET   gettimeofday 0
9344 mysqld   CALL  mmap(0,0x22000,0x3,0x1002,0xffffffffffffffff,0,0)
9344 mysqld   RET   mmap 1198186496/0x476ae000
9344 mysqld   CALL  mprotect(0x476ae000,0x2000,0)
9344 mysqld   RET   mprotect 0
9344 mysqld   CALL  poll(0x40b6c800,0x2,0)
9344 mysqld   RET   poll 0
9344 mysqld   CALL  gettimeofday(0x476cfda0,0)
9344 mysqld   RET   gettimeofday 0
9344 mysqld   CALL  setsockopt(0x16,0xffff,0x8,0x476cfc0c,0x4)
9344 mysqld   RET   setsockopt 0
9344 mysqld   PSIG  SIGPROF caught handler=0x4e0ee9a0 mask=0x0
9344 mysqld   CALL  gettimeofday(0x4e2f4060,0)
9344 mysqld   RET   gettimeofday 0
9344 mysqld   CALL  sigprocmask(0x3,0)
9344 mysqld   RET   sigprocmask -65793/0xfffefeff
9344 mysqld   CALL  poll(0x50594000,0x2,0)
###########################################################
This segment repeated 2768 times
###########################################################
9344 mysqld   RET   poll 0
9344 mysqld   CALL  sigreturn(0x476cf9b0)
9344 mysqld   RET   sigreturn JUSTRETURN
9344 mysqld   PSIG  SIGPROF caught handler=0x4e0ee9a0 mask=0x0
9344 mysqld   CALL  gettimeofday(0x4e2f4060,0)
9344 mysqld   RET   gettimeofday 0
9344 mysqld   CALL  sigprocmask(0x3,0)
9344 mysqld   RET   sigprocmask -65793/0xfffefeff
9344 mysqld   CALL  poll(0x50594000,0x2,0)
###########################################################
end
###########################################################
9344 mysqld   RET   poll 0
9344 mysqld   CALL  sigreturn(0x476cf9b0)
9344 mysqld   RET   sigreturn JUSTRETURN
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