stat("/mnt/data/test/daily_binned_datetime", {st_mode=S_IFREG|0664, st_size=67842, ...}) = 0
stat("/mnt/data/test/daily_binned_datetime.msk", 0x7fff96bfcbb0) = -1 ENOENT (No such file or directory)
open("/mnt/data/test/daily_binned_datetime.dic", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0664, st_size=9, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f29f046e000
fstat(3, {st_mode=S_IFREG|0664, st_size=9, ...}) = 0
lseek(3, 0, SEEK_SET)                   = 0
read(3, "20140203\0", 9)                = 9
fstat(3, {st_mode=S_IFREG|0664, st_size=9, ...}) = 0
lseek(3, 0, SEEK_SET)                   = 0
read(3, "20140203\0", 4096)             = 9
lseek(3, 9, SEEK_SET)                   = 9
close(3)                                = 0
munmap(0x7f29f046e000, 4096)            = 0
open("/mnt/data/test/daily_binned_datetime.idx", O_RDONLY) = -1 ENOENT (No such file or directory)
futex(0x166abd8, FUTEX_WAIT_PRIVATE, 2, NULL