BusinessWorker经常busy，用strace -ttp查的结果如下，求解

# strace -ttp 27385
strace: Process 27385 attached
08:45:20.186340 restart_syscall(<... resuming interrupted poll ...>) = 0
08:45:20.298023 poll(, 1, 0) = 0 (Timeout)
08:45:20.298309 poll(, 1, 1000) = 0 (Timeout)
08:45:21.299279 poll(, 1, 0) = 0 (Timeout)
08:45:21.299459 poll(, 1, 1000) = 0 (Timeout)
08:45:22.300407 poll(, 1, 0) = 0 (Timeout)
08:45:22.300530 poll(, 1, 1000) = 0 (Timeout)
08:45:23.301768 poll(, 1, 0) = 0 (Timeout)
08:45:23.301955 poll(, 1, 1000) = 0 (Timeout)
08:45:24.302354 poll(, 1, 0) = 0 (Timeout)
08:45:24.302541 poll(, 1, 1000) = 0 (Timeout)
08:45:25.303713 poll(, 1, 0) = 0 (Timeout)
08:45:25.303909 poll(, 1, 1000) = 0 (Timeout)
08:45:26.304305 poll(, 1, 0) = 0 (Timeout)
08:45:26.304408 poll(, 1, 1000) = 0 (Timeout)
08:45:27.305580 poll(, 1, 0) = 0 (Timeout)
08:45:27.305764 poll(, 1, 1000) = 0 (Timeout)
08:45:28.306359 poll(, 1, 0) = 0 (Timeout)
08:45:28.306529 poll(, 1, 1000) = 0 (Timeout)
08:45:29.307723 poll(, 1, 0) = 0 (Timeout)

下面该怎么做呢？