launcher3 自定义了主页 占用CPU极速升高 以下是我用strace打的log片段 一直重复刷 是什么原因啊？求解
```futex(0x4273d4e4, 0x80 /* FUTEX_??? /, -157428) = 0
getuid32() = 1000
SYS_329(0xf, 0xbefefeb0, 0x10, 0, 0) = 1
read(10, "WW", 16) = 2
clock_gettime(CLOCK_MONOTONIC, {869, 443037689}) = 0
SYS_329(0xf, 0xbefefeb0, 0x10, 0xffffffff, 0) = 1
recvfrom(23, "nysv\0\0\0\0\216\222Fo\312\0\0\0y\237\0\0\0\0\0\0", 2400, MSG_DONTWAIT, NULL
, NULL) = 24
recvfrom(23, 0xbefef4e0, 2400, 64, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
clock_gettime(CLOCK_MONOTONIC, {869, 451571273}) = 0
write(14, "W", 1) = 1
clock_gettime(CLOCK_MONOTONIC, {869, 452102981}) = 0
clock_gettime(CLOCK_MONOTONIC, {869, 452302481}) = 0
clock_gettime(CLOCK_MONOTONIC, {869, 452492356}) = 0
recvfrom(33, 0x42452c10, 2264, 64, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
clock_gettime(CLOCK_MONOTONIC, {869, 453417231}) = 0
clock_gettime(CLOCK_MONOTONIC, {869, 453941939}) = 0
write(14, "W", 1) = 1
clock_gettime(CLOCK_MONOTONIC, {869, 455405523}) = 0
clock_gettime(CLOCK_MONOTONIC, {869, 455642939}) = 0
recvfrom(23, 0xbefee468, 2400, 64, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
ioctl(8, 0xc0186201, 0xbefeec58) = 0
clock_gettime(CLOCK_MONOTONIC, {869, 456680689}) = 0
write(26, "W", 1) = 1
futex(0x42747408, 0x81 / FUTEX_??? /, 1) = 1
write(26, "W", 1) = 1
futex(0x42747408, 0x81 / FUTEX_??? /, 1) = 1
futex(0x4273d4e4, 0x80 / FUTEX_??? /, -157432) = 0
getuid32() = 1000
SYS_329(0xf, 0xbefefeb0, 0x10, 0, 0) = 1
read(10, "WW", 16) = 2
clock_gettime(CLOCK_MONOTONIC, {869, 459970397}) = 0
SYS_329(0xf, 0xbefefeb0, 0x10, 0xffffffff, 0) = 1
recvfrom(23, "nysv\0\0\0\0\271\0167p\312\0\0\0z\237\0\0\0\0\0\0", 2400, MSG_DONTWAIT, NULL
, NULL) = 24
recvfrom(23, 0xbefef4e0, 2400, 64, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
clock_gettime(CLOCK_MONOTONIC, {869, 467581148}) = 0
write(14, "W", 1) = 1
clock_gettime(CLOCK_MONOTONIC, {869, 468183147}) = 0
clock_gettime(CLOCK_MONOTONIC, {869, 468489981}) = 0
clock_gettime(CLOCK_MONOTONIC, {869, 468793314}) = 0
recvfrom(33, 0x42452c10, 2264, 64, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
clock_gettime(CLOCK_MONOTONIC, {869, 469607064}) = 0
clock_gettime(CLOCK_MONOTONIC, {869, 469882397}) = 0
write(14, "W", 1) = 1
clock_gettime(CLOCK_MONOTONIC, {869, 471712314}) = 0
clock_gettime(CLOCK_MONOTONIC, {869, 471951189}) = 0
recvfrom(23, 0xbefee468, 2400, 64, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
ioctl(8, 0xc0186201, 0xbefeec58) = 0
clock_gettime(CLOCK_MONOTONIC, {869, 472887731}) = 0
write(26, "W", 1) = 1
futex(0x42747408, 0x81 / FUTEX_??? */, 1) = 1
