#include <vppinfra/cache.h>
#include <vppinfra/error.h>
#include <vppinfra/tw_timer_2t_1w_2048sl.h>
+#include <vppinfra/tw_timer_2t_2w_512sl.h>
#include <vppinfra/tw_timer_16t_2w_512sl.h>
#include <vppinfra/tw_timer_4t_3w_256sl.h>
#include <vppinfra/tw_timer_1t_3w_1024sl_ov.h>
/* The triple wheel with overflow vector */
tw_timer_wheel_1t_3w_1024sl_ov_t triple_ov_wheel;
+ /* Another two timer wheel geometry */
+ tw_timer_wheel_2t_2w_512sl_t two_timer_double_wheel;
+
/** random number seed */
u64 seed;
}
}
+static void
+run_two_timer_double_wheel (tw_timer_wheel_2t_2w_512sl_t * tw, u32 n_ticks)
+{
+ u32 i;
+ f64 now = tw->last_run_time + 1.01;
+
+ for (i = 0; i < n_ticks; i++)
+ {
+ tw_timer_expire_timers_2t_2w_512sl (tw, now);
+ now += 1.01;
+ }
+}
+
static void
run_triple_wheel (tw_timer_wheel_4t_3w_256sl_t * tw, u32 n_ticks)
{
}
}
+static void
+expired_timer_two_timer_double_callback (u32 * expired_timers)
+{
+ int i;
+ u32 pool_index, timer_id;
+ tw_timer_test_elt_t *e;
+ tw_timer_test_main_t *tm = &tw_timer_test_main;
+
+ for (i = 0; i < vec_len (expired_timers); i++)
+ {
+ pool_index = expired_timers[i] & 0x7FFFFFFF;
+ timer_id = expired_timers[i] >> 31;
+
+ ASSERT (timer_id == 1);
+
+ e = pool_elt_at_index (tm->test_elts, pool_index);
+
+ if (e->expected_to_expire != tm->two_timer_double_wheel.current_tick)
+ {
+ fformat (stdout, "[%d] expired at %lld not %lld\n",
+ e - tm->test_elts, tm->two_timer_double_wheel.current_tick,
+ e->expected_to_expire);
+ }
+ pool_put (tm->test_elts, e);
+ }
+}
+
static void
expired_timer_triple_callback (u32 * expired_timers)
{
for (i = 0; i < tm->ntimers; i++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
do
{
for (j = 0; j < tm->ntimers / 4; j++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
do
{
for (i = 0; i < tm->ntimers; i++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
do
{
for (j = 0; j < tm->ntimers / 4; j++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
do
{
return 0;
}
+static u32
+get_expiration_time (tw_timer_test_main_t * tm)
+{
+ u32 expiration_time;
+ do
+ {
+ expiration_time = random_u64 (&tm->seed) & ((1 << 17) - 1);
+ }
+ while (expiration_time == 0);
+ return expiration_time;
+}
+
+static clib_error_t *
+test2_double_updates (tw_timer_test_main_t * tm)
+{
+ u32 i, j;
+ tw_timer_test_elt_t *e;
+ u32 initial_wheel_offset;
+ u32 expiration_time;
+ u32 max_expiration_time = 0, updates = 0;
+ f64 before, after;
+
+ clib_time_init (&tm->clib_time);
+ tw_timer_wheel_init_16t_2w_512sl (&tm->double_wheel,
+ expired_timer_double_callback,
+ 1.0 /* timer interval */ , ~0);
+
+ /* Prime offset */
+ initial_wheel_offset = 7577;
+ run_double_wheel (&tm->double_wheel, initial_wheel_offset);
+ fformat (stdout, "initial wheel time %d, fast index %d slow index %d\n",
+ tm->double_wheel.current_tick,
+ tm->double_wheel.current_index[TW_TIMER_RING_FAST],
+ tm->double_wheel.current_index[TW_TIMER_RING_SLOW]);
+
+ initial_wheel_offset = tm->double_wheel.current_tick;
+ fformat (stdout,
+ "test %d timers, %d iter, %d ticks per iter, 0x%llx seed\n",
+ tm->ntimers, tm->niter, tm->ticks_per_iter, tm->seed);
+
+ before = clib_time_now (&tm->clib_time);
+
+ /* Prime the pump */
+ for (i = 0; i < tm->ntimers; i++)
+ {
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+
+ expiration_time = get_expiration_time (tm);
+ max_expiration_time = clib_max (expiration_time, max_expiration_time);
+
+ e->expected_to_expire = expiration_time + initial_wheel_offset;
+ e->stop_timer_handle = tw_timer_start_16t_2w_512sl (&tm->double_wheel,
+ e - tm->test_elts,
+ 14 /* timer id */ ,
+ expiration_time);
+ }
+
+ for (i = 0; i < tm->niter; i++)
+ {
+ run_double_wheel (&tm->double_wheel, tm->ticks_per_iter);
+
+ j = 0;
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ expiration_time = get_expiration_time (tm);
+ max_expiration_time = clib_max (expiration_time, max_expiration_time);
+ e->expected_to_expire = expiration_time
+ + tm->double_wheel.current_tick;
+ tw_timer_update_16t_2w_512sl (&tm->double_wheel, e->stop_timer_handle,
+ expiration_time);
+ if (++j >= tm->ntimers / 4)
+ goto done;
+ }));
+ /* *INDENT-ON* */
+
+ done:
+ updates += j;
+ }
+
+ run_double_wheel (&tm->double_wheel, max_expiration_time + 1);
+
+ after = clib_time_now (&tm->clib_time);
+
+ fformat (stdout, "%d updates, %d ticks\n", updates,
+ tm->double_wheel.current_tick);
+ fformat (stdout, "test ran %.2f seconds, %.2f ops/second\n",
+ (after - before),
+ ((f64) updates + (f64) tm->double_wheel.current_tick) / (after -
+ before));
+
+ if (pool_elts (tm->test_elts))
+ fformat (stdout, "Note: %d elements remain in pool\n",
+ pool_elts (tm->test_elts));
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ fformat (stdout, "[%d] expected to expire %d\n",
+ e - tm->test_elts,
+ e->expected_to_expire);
+ }));
+ /* *INDENT-ON* */
+
+ pool_free (tm->test_elts);
+ tw_timer_wheel_free_16t_2w_512sl (&tm->double_wheel);
+ return 0;
+}
+
static clib_error_t *
test2_triple (tw_timer_test_main_t * tm)
{
for (i = 0; i < tm->ntimers; i++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
do
{
for (j = 0; j < tm->ntimers / 4; j++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
do
{
for (i = 0; i < tm->ntimers; i++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
do
{
for (j = 0; j < tm->ntimers / 4; j++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
do
{
if (timer_arg == 0)
timer_arg = 1;
- expected_to_expire = timer_arg + offset;
+ expected_to_expire = timer_arg + tm->single_wheel.current_tick;
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
e->expected_to_expire = expected_to_expire;
e->stop_timer_handle = tw_timer_start_2t_1w_2048sl
(&tm->single_wheel, e - tm->test_elts, 1 /* timer id */ ,
for (i = 0; i < tm->ntimers; i++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
- e->expected_to_expire = i + offset + 1;
+ e->expected_to_expire = i + tm->double_wheel.current_tick + 1;
e->stop_timer_handle = tw_timer_start_16t_2w_512sl
(&tm->double_wheel, e - tm->test_elts, 14 /* timer id */ ,
i + 1);
return 0;
}
+static clib_error_t *
+test1_two_timer_double (tw_timer_test_main_t * tm)
+{
+ u32 i;
+ tw_timer_test_elt_t *e;
+ u32 offset;
+
+ tw_timer_wheel_init_2t_2w_512sl (&tm->two_timer_double_wheel,
+ expired_timer_two_timer_double_callback,
+ 1.0 /* timer interval */ , ~0);
+
+ /*
+ * Prime offset, to make sure that the wheel starts in a
+ * non-trivial position
+ */
+ offset = 2745;
+
+ run_two_timer_double_wheel (&tm->two_timer_double_wheel, offset);
+
+ fformat (stdout, "initial wheel time %d, fast index %d\n",
+ tm->two_timer_double_wheel.current_tick,
+ tm->two_timer_double_wheel.current_index[TW_TIMER_RING_FAST]);
+
+ for (i = 0; i < tm->ntimers; i++)
+ {
+ pool_get (tm->test_elts, e);
+ clib_memset (e, 0, sizeof (*e));
+
+ e->expected_to_expire = i + tm->two_timer_double_wheel.current_tick + 1;
+ e->stop_timer_handle = tw_timer_start_2t_2w_512sl
+ (&tm->two_timer_double_wheel, e - tm->test_elts, 1 /* timer id */ ,
+ i + 1);
+ }
+ run_two_timer_double_wheel (&tm->two_timer_double_wheel, tm->ntimers + 3);
+
+ if (pool_elts (tm->test_elts))
+ fformat (stdout, "Note: %d elements remain in pool\n",
+ pool_elts (tm->test_elts));
+
+ /* *INDENT-OFF* */
+ pool_foreach (e, tm->test_elts,
+ ({
+ fformat(stdout, "[%d] expected to expire %d\n",
+ e - tm->test_elts,
+ e->expected_to_expire);
+ }));
+ /* *INDENT-ON* */
+
+ fformat (stdout,
+ "final wheel time %d, fast index %d\n",
+ tm->two_timer_double_wheel.current_tick,
+ tm->two_timer_double_wheel.current_index[TW_TIMER_RING_FAST]);
+
+ pool_free (tm->test_elts);
+ tw_timer_wheel_free_2t_2w_512sl (&tm->two_timer_double_wheel);
+ return 0;
+}
+
static clib_error_t *
test3_triple_double (tw_timer_test_main_t * tm)
{
/* Prime the pump */
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
/* 1 glacier ring tick from now */
expiration_time = TW_SLOTS_PER_RING * TW_SLOTS_PER_RING;
for (i = 0; i < tm->ntimers; i++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
expiration_time = 512;
for (i = 0; i < tm->ntimers; i++)
{
pool_get (tm->test_elts, e);
- memset (e, 0, sizeof (*e));
+ clib_memset (e, 0, sizeof (*e));
expiration_time = i + 1;
timer_test_command_fn (tw_timer_test_main_t * tm, unformat_input_t * input)
{
- int is_test1 = 0;
+ int is_test1 = 0, is_updates = 0;
int num_wheels = 1;
int is_test2 = 0;
int is_test3 = 0;
int is_test5 = 0;
int overflow = 0;
- memset (tm, 0, sizeof (*tm));
+ clib_memset (tm, 0, sizeof (*tm));
/* Default values */
tm->ntimers = 100000;
tm->seed = 0xDEADDABEB00BFACE;
is_test4 = 1;
else if (unformat (input, "linear"))
is_test5 = 1;
+ else if (unformat (input, "updates"))
+ is_updates = 1;
else if (unformat (input, "wheels %d", &num_wheels))
;
else if (unformat (input, "ntimers %d", &tm->ntimers))
if (num_wheels == 1)
return test1_single (tm);
else
- return test1_double (tm);
+ {
+ (void) test1_double (tm);
+ return test1_two_timer_double (tm);
+ }
}
if (is_test2)
{
if (num_wheels == 1)
return test2_single (tm);
else if (num_wheels == 2)
- return test2_double (tm);
+ if (is_updates)
+ return test2_double_updates (tm);
+ else
+ return test2_double (tm);
else if (num_wheels == 3)
{
if (overflow == 0)
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