brk increase/decrease of one page
Context switch via pipes
eventfd read/write of 8 bytes
futex(FUTEX_WAKE)
futex(FUTEX_WAIT)
futex(FUTEX_WAKE_PRIVATE)
futex(FUTEX_WAIT_PRIVATE)
getppid
Separate file write lock/unlock
Separate file lseek
Same file lseek
malloc/free of 128MB
malloc/free of 1kB
Anonymous memory mmap/munmap of 128MB
Separate file mmap/munmap of 128MB
Separate file open/close
Separate file open/close in different directories
Same file open/close
Anonymous memory page fault
Separate file private mapping page fault
Separate file shared mapping page fault
pipe read/write
poll of 1 fd
poll of 128 fds
POSIX semaphores
Separate file pread
Same file pread
Contended pthread mutex
Uncontended pthread mutex
Separate file pwrite
Same file pwrite
Separate file read
Same file read
Separate file O_DIRECT read
Same file O_DIRECT read
Separate file seek+read
sched_yield
signal delivery
unix domain socket read/write
Separate file open/close/unlink
Separate file open/close in different directories
Separate file write
Separate file seek+write