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authorDave Barach <dave@barachs.net>2020-04-01 14:34:39 -0400
committerDamjan Marion <dmarion@me.com>2020-04-01 19:49:02 +0000
commit9076789779c5a038ec17936130a556703c234fa8 (patch)
treedf7f2824e5805fbe61261ddff57e292a45df85d0 /src/vppinfra/test_tw_timer.c
parent5da10c4c5501d40366df451703c2ffa3993be8cf (diff)
vppinfra: add tw_timer_2t_2w_512sl variant
Type: feature Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I72cacfb5696dca74335f31415c0df795467615a5
Diffstat (limited to 'src/vppinfra/test_tw_timer.c')
-rw-r--r--src/vppinfra/test_tw_timer.c111
1 files changed, 108 insertions, 3 deletions
diff --git a/src/vppinfra/test_tw_timer.c b/src/vppinfra/test_tw_timer.c
index 90fbc9e18b7..499cc017ba1 100644
--- a/src/vppinfra/test_tw_timer.c
+++ b/src/vppinfra/test_tw_timer.c
@@ -2,6 +2,7 @@
#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>
@@ -32,6 +33,9 @@ typedef struct
/* 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;
@@ -77,6 +81,19 @@ run_double_wheel (tw_timer_wheel_16t_2w_512sl_t * tw, u32 n_ticks)
}
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)
{
u32 i;
@@ -157,6 +174,33 @@ expired_timer_double_callback (u32 * expired_timers)
}
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)
{
int i;
@@ -913,7 +957,7 @@ test1_single (tw_timer_test_main_t * tm)
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);
clib_memset (e, 0, sizeof (*e));
@@ -975,7 +1019,7 @@ test1_double (tw_timer_test_main_t * tm)
pool_get (tm->test_elts, 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);
@@ -1006,6 +1050,64 @@ test1_double (tw_timer_test_main_t * tm)
}
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)
{
tw_timer_test_elt_t *e;
@@ -1308,7 +1410,10 @@ timer_test_command_fn (tw_timer_test_main_t * tm, unformat_input_t * input)
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)
{