mc_r12      uint64
	mc_r13      uint64
	mc_r14      uint64
	mc_r15      uint64
	mc_xflags   uint64
	mc_trapno   uint64
	mc_addr     uint64
	mc_flags    uint64
	mc_err      uint64
	mc_rip      uint64
	mc_cs       uint64
	mc_rflags   uint64
	mc_rsp      uint64
	mc_ss       uint64
	mc_len      uint32
	mc_fpformat uint32
	mc_ownedfp  uint32
	mc_reserved uint32
	mc_unused   [8]uint32

	si_status int32
	si_addr   uint64
	si_value  [8]byte
	_reason   [40]byte
}

type mcontext struct {
	mc_onstack       uint64
	mc_rdi           uint64
	mc_rsi           uint64
	mc_rdx           uint64
	mc_rcx           uint64
	mc_r8            uint64
	mc_r9            uint64
	mc_rax           uint64
	mc_rbx           uint64
	mc_rbp           uint64
	mc_r10           uint64

	si_uid    uint32
	si_status int32
	si_addr   uint64
	si_value  [8]byte
	_reason   [40]byte
}

type gpregs struct {
	gp_ra      uint64
	gp_sp      uint64
	gp_gp      uint64
	gp_tp      uint64
	gp_t       [7]uint64
	gp_s       [12]uint64
	gp_a       [8]uint64
	gp_sepc    uint64
	gp_sstatus uint64
}

type fpregs struct {
	fp_x     [64]uint64 // actually __uint64_t fp_x[32][2]
	fp_fcsr  uint64

	Inblock  int64
	Oublock  int64
	Msgsnd   int64
	Msgrcv   int64
	Nsignals int64
	Nvcsw    int64
	Nivcsw   int64
}

type Rlimit struct {
	Cur uint64
	Max uint64
}

type _Pid_t int32

type _Gid_t uint32

const (
	S_IFMT   = 0xf000
	S_IFIFO  = 0x1000
	S_IFCHR  = 0x2000
	S_IFDIR  = 0x4000
	S_IFBLK  = 0x6000
	S_IFREG  = 0x8000
	S_IFLNK  = 0xa000
	S_IFSOCK = 0xc000

	Hdrlen     uint8
	Pad_cgo_0  [1]byte
	Link_state int32
	Mtu        uint64
	Metric     uint64
	Baudrate   uint64
	Ipackets   uint64
	Ierrors    uint64
	Opackets   uint64
	Oerrors    uint64
	Collisions uint64
	Ibytes     uint64
	Obytes     uint64
	Imcasts    uint64
	Omcasts    uint64
	Iqdrops    uint64
	Noproto    uint64
	Lastchange Timespec
}

type IfaMsghdr struct {

	Hdrlen     uint8
	Pad_cgo_0  [1]byte
	Link_state int32
	Mtu        uint64
	Metric     uint64
	Baudrate   uint64
	Ipackets   uint64
	Ierrors    uint64
	Opackets   uint64
	Oerrors    uint64
	Collisions uint64
	Ibytes     uint64
	Obytes     uint64
	Imcasts    uint64
	Omcasts    uint64
	Iqdrops    uint64
	Noproto    uint64
	Lastchange Timespec
}

type IfaMsghdr struct {

	_O_CLOEXEC   = 0x80000
	_SA_RESTORER = 0
)

type ptregs struct {
	gpr       [32]uint64
	nip       uint64
	msr       uint64
	orig_gpr3 uint64
	ctr       uint64
	link      uint64
	xer       uint64
	ccr       uint64
	softe     uint64
	trap      uint64
	dar       uint64
	dsisr     uint64
	result    uint64
}

type vreg struct {
	u [4]uint32
}

type stackt struct {

}

type regs64 struct {
	rax    uint64
	rbx    uint64
	rcx    uint64
	rdx    uint64
	rdi    uint64
	rsi    uint64
	rbp    uint64
	rsp    uint64
	r8     uint64
	r9     uint64
	r10    uint64
	r11    uint64
	r12    uint64
	r13    uint64
	r14    uint64
	r15    uint64
	rip    uint64
	rflags uint64
	cs     uint64
	fs     uint64
	gs     uint64
}

type floatstate64 struct {

}

func testDivisibleExhaustive(t *testing.T, n uint) {
	minI := -int64(1) << (n - 1)
	maxI := int64(1) << (n - 1)
	for c := int64(1); c < maxI; c++ {
		if !sdivisibleOK(n, int64(c)) {
			continue
		}
		k := sdivisible(n, int64(c)).k
		m := sdivisible(n, int64(c)).m
		a := sdivisible(n, int64(c)).a
		max := sdivisible(n, int64(c)).max
		mask := ^uint64(0) >> (64 - n)
		for i := minI; i < maxI; i++ {
			want := i%c == 0

		name     string
		quota    int64
		period   int64
		expected int64
	}{
		{
			name:     "50m",
			quota:    int64(5000),
			period:   int64(100000),
			expected: int64(50),
		},
		{
			name:     "750m",
			quota:    int64(75000),
			period:   int64(100000),
			expected: int64(750),
		},
		{
			name:     "1000m",
			quota:    int64(100000),
			period:   int64(100000),