/*
* Configuration
*/
- u32 default_fifo_size; /**< default rx/tx fifo size */
- u32 default_segment_size; /**< default fifo segment size */
- u32 default_app_mq_size; /**< default app msg q size */
+ u32 default_fifo_size; /**< default rx/tx fifo size */
+ u32 default_segment_size; /**< default fifo segment size */
+ u32 default_app_mq_size; /**< default app msg q size */
+ u32 default_max_fifo_size; /**< default max fifo size */
+ u8 default_high_watermark; /**< default high watermark % */
+ u8 default_low_watermark; /**< default low watermark % */
} segment_manager_main_t;
static segment_manager_main_t sm_main;
props->rx_fifo_size = sm_main.default_fifo_size;
props->tx_fifo_size = sm_main.default_fifo_size;
props->evt_q_size = sm_main.default_app_mq_size;
+ props->max_fifo_size = sm_main.default_max_fifo_size;
+ props->high_watermark = sm_main.default_high_watermark;
+ props->low_watermark = sm_main.default_low_watermark;
+ props->n_slices = vlib_num_workers () + 1;
return props;
}
* to avoid affecting any of the segments pool readers.
*/
int
-segment_manager_add_segment (segment_manager_t * sm, u32 segment_size)
+segment_manager_add_segment (segment_manager_t * sm, uword segment_size)
{
+ uword baseva = (uword) ~ 0ULL, alloc_size, page_size;
+ u32 rnd_margin = 128 << 10, fs_index = ~0;
segment_manager_main_t *smm = &sm_main;
- u32 rnd_margin = 128 << 10, fs_index = ~0, page_size;
- uword baseva = (uword) ~ 0ULL, alloc_size;
segment_manager_props_t *props;
fifo_segment_t *fs;
u8 *seg_name;
}
/*
- * Allocate fifo segment and lock if needed
+ * Allocate fifo segment and grab lock if needed
*/
if (vlib_num_workers ())
clib_rwlock_writer_lock (&sm->segments_rwlock);
pool_get_zero (sm->segments, fs);
/*
- * Initialize ssvm segment and svm fifo private header
+ * Allocate ssvm segment
*/
segment_size = segment_size ? segment_size : props->add_segment_size;
page_size = clib_mem_get_page_size ();
/* Protect against segment size u32 wrap */
segment_size = clib_max (segment_size + page_size - 1, segment_size);
segment_size = segment_size & ~(page_size - 1);
+
if (props->segment_type != SSVM_SEGMENT_PRIVATE)
{
seg_name = format (0, "%d-%d%c", getpid (), smm->seg_name_counter++, 0);
}
}
else
- seg_name = format (0, "%s%c", "process-private-segment", 0);
+ seg_name = format (0, "%s%c", "process-private", 0);
fs->ssvm.ssvm_size = segment_size;
fs->ssvm.name = seg_name;
goto done;
}
+ /*
+ * Initialize fifo segment
+ */
+ fs->n_slices = props->n_slices;
fifo_segment_init (fs);
/*
*/
fs_index = fs - sm->segments;
+ /*
+ * Set watermarks in segment
+ */
+ fs->h->high_watermark = sm->high_watermark;
+ fs->h->low_watermark = sm->low_watermark;
+ fs->h->pct_first_alloc = props->pct_first_alloc;
+ fs->h->flags &= ~FIFO_SEGMENT_F_MEM_LIMIT;
+
done:
if (vlib_num_workers ())
void
segment_manager_segment_reader_unlock (segment_manager_t * sm)
{
- ASSERT (sm->segments_rwlock->n_readers > 0);
clib_rwlock_reader_unlock (&sm->segments_rwlock);
}
* Returns error if ssvm segment(s) allocation fails.
*/
int
-segment_manager_init (segment_manager_t * sm, u32 first_seg_size,
- u32 prealloc_fifo_pairs)
+segment_manager_init (segment_manager_t * sm)
{
u32 rx_fifo_size, tx_fifo_size, pair_size;
u32 rx_rounded_data_size, tx_rounded_data_size;
+ uword first_seg_size;
+ u32 prealloc_fifo_pairs;
u64 approx_total_size, max_seg_size = ((u64) 1 << 32) - (128 << 10);
segment_manager_props_t *props;
fifo_segment_t *segment;
int seg_index, i;
props = segment_manager_properties_get (sm);
- first_seg_size = clib_max (first_seg_size, sm_main.default_segment_size);
+ first_seg_size = clib_max (props->segment_size,
+ sm_main.default_segment_size);
+ prealloc_fifo_pairs = props->prealloc_fifos;
+
+ sm->max_fifo_size = props->max_fifo_size ?
+ props->max_fifo_size : sm_main.default_max_fifo_size;
+ sm->max_fifo_size = clib_max (sm->max_fifo_size, 4096);
+
+ segment_manager_set_watermarks (sm,
+ props->high_watermark,
+ props->low_watermark);
if (prealloc_fifo_pairs)
{
return pool_elt_at_index (sm_main.segment_managers, index);
}
+static fifo_segment_t *
+find_max_free_segment (segment_manager_t * sm, u32 thread_index)
+{
+ fifo_segment_t *cur, *fs = 0;
+ uword free_bytes, max_free_bytes = 0;
+
+ clib_rwlock_reader_lock (&sm->segments_rwlock);
+ /* *INDENT-OFF* */
+ pool_foreach (cur, sm->segments, ({
+ if ((free_bytes = fifo_segment_free_bytes (cur)) > max_free_bytes)
+ {
+ max_free_bytes = free_bytes;
+ fs = cur;
+ }
+ }));
+ /* *INDENT-ON* */
+ clib_rwlock_reader_unlock (&sm->segments_rwlock);
+
+ return fs;
+}
+
u32
segment_manager_index (segment_manager_t * sm)
{
void
segment_manager_del_sessions (segment_manager_t * sm)
{
- fifo_segment_t *fifo_segment;
session_handle_t *handles = 0, *handle;
+ fifo_segment_t *fs;
session_t *session;
- svm_fifo_t *fifo;
+ int slice_index;
+ svm_fifo_t *f;
ASSERT (pool_elts (sm->segments) != 0);
/* Across all fifo segments used by the server */
/* *INDENT-OFF* */
- segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({
- fifo = fifo_segment_get_fifo_list (fifo_segment);
-
- /*
- * Remove any residual sessions from the session lookup table
- * Don't bother deleting the individual fifos, we're going to
- * throw away the fifo segment in a minute.
- */
- while (fifo)
+ segment_manager_foreach_segment_w_lock (fs, sm, ({
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
{
- session = session_get_if_valid (fifo->master_session_index,
- fifo->master_thread_index);
- if (session)
- vec_add1 (handles, session_handle (session));
- fifo = fifo->next;
+ f = fifo_segment_get_slice_fifo_list (fs, slice_index);
+
+ /*
+ * Remove any residual sessions from the session lookup table
+ * Don't bother deleting the individual fifos, we're going to
+ * throw away the fifo segment in a minute.
+ */
+ while (f)
+ {
+ session = session_get_if_valid (f->master_session_index,
+ f->master_thread_index);
+ if (session)
+ vec_add1 (handles, session_handle (session));
+ f = f->next;
+ }
}
/* Instead of removing the segment, test when cleaning up disconnected
int
segment_manager_try_alloc_fifos (fifo_segment_t * fifo_segment,
+ u32 thread_index,
u32 rx_fifo_size, u32 tx_fifo_size,
svm_fifo_t ** rx_fifo, svm_fifo_t ** tx_fifo)
{
rx_fifo_size = clib_max (rx_fifo_size, sm_main.default_fifo_size);
- *rx_fifo = fifo_segment_alloc_fifo (fifo_segment, rx_fifo_size,
- FIFO_SEGMENT_RX_FIFO);
+ *rx_fifo = fifo_segment_alloc_fifo_w_slice (fifo_segment, thread_index,
+ rx_fifo_size,
+ FIFO_SEGMENT_RX_FIFO);
tx_fifo_size = clib_max (tx_fifo_size, sm_main.default_fifo_size);
- *tx_fifo = fifo_segment_alloc_fifo (fifo_segment, tx_fifo_size,
- FIFO_SEGMENT_TX_FIFO);
+ *tx_fifo = fifo_segment_alloc_fifo_w_slice (fifo_segment, thread_index,
+ tx_fifo_size,
+ FIFO_SEGMENT_TX_FIFO);
if (*rx_fifo == 0)
{
int
segment_manager_alloc_session_fifos (segment_manager_t * sm,
+ u32 thread_index,
svm_fifo_t ** rx_fifo,
svm_fifo_t ** tx_fifo)
{
/*
* Find the first free segment to allocate the fifos in
*/
+ fs = find_max_free_segment (sm, thread_index);
- /* *INDENT-OFF* */
- segment_manager_foreach_segment_w_lock (fs, sm, ({
- alloc_fail = segment_manager_try_alloc_fifos (fs,
- props->rx_fifo_size,
- props->tx_fifo_size,
- rx_fifo, tx_fifo);
- /* Exit with lock held, drop it after notifying app */
- if (!alloc_fail)
- goto alloc_success;
- }));
- /* *INDENT-ON* */
+ if (fs)
+ {
+ clib_rwlock_reader_lock (&sm->segments_rwlock);
+ alloc_fail = segment_manager_try_alloc_fifos (fs, thread_index,
+ props->rx_fifo_size,
+ props->tx_fifo_size,
+ rx_fifo, tx_fifo);
+ /* On success, keep lock until fifos are initialized */
+ if (!alloc_fail)
+ goto alloc_success;
+
+ segment_manager_segment_reader_unlock (sm);
+ }
+ else
+ {
+ alloc_fail = 1;
+ }
alloc_check:
return SESSION_ERROR_SEG_CREATE;
}
fs = segment_manager_get_segment_w_lock (sm, new_fs_index);
- alloc_fail = segment_manager_try_alloc_fifos (fs, props->rx_fifo_size,
+ alloc_fail = segment_manager_try_alloc_fifos (fs, thread_index,
+ props->rx_fifo_size,
props->tx_fifo_size,
rx_fifo, tx_fifo);
added_a_segment = 1;
segment_manager_segment_reader_unlock (sm);
}
-int
-segment_manager_grow_fifo (segment_manager_t * sm, svm_fifo_t * f, u32 size)
-{
- fifo_segment_t *fs;
- int rv;
-
- fs = segment_manager_get_segment_w_lock (sm, f->segment_index);
- rv = fifo_segment_grow_fifo (fs, f, size);
- segment_manager_segment_reader_unlock (sm);
-
- return rv;
-}
-
-int
-segment_manager_collect_fifo_chunks (segment_manager_t * sm, svm_fifo_t * f)
-{
- fifo_segment_t *fs;
- int rv;
-
- fs = segment_manager_get_segment_w_lock (sm, f->segment_index);
- rv = fifo_segment_collect_fifo_chunks (fs, f);
- segment_manager_segment_reader_unlock (sm);
-
- return rv;
-}
-
-int
-segment_manager_shrink_fifo (segment_manager_t * sm, svm_fifo_t * f, u32 size,
- u8 is_producer)
-{
- int rv;
-
- rv = svm_fifo_reduce_size (f, size, is_producer);
-
- /* Nothing to collect at this point */
- if (!is_producer)
- return rv;
-
- if (f->flags & SVM_FIFO_F_COLLECT_CHUNKS)
- segment_manager_collect_fifo_chunks (sm, f);
-
- return rv;
-}
-
u32
segment_manager_evt_q_expected_size (u32 q_len)
{
oldheap = ssvm_push_heap (segment->ssvm.sh);
q = svm_msg_q_alloc (cfg);
+ fifo_segment_update_free_bytes (segment);
ssvm_pop_heap (oldheap);
if (props->use_mq_eventfd)
sm->default_fifo_size = 1 << 12;
sm->default_segment_size = 1 << 20;
sm->default_app_mq_size = 128;
+ sm->default_max_fifo_size = 4 << 20;
+ sm->default_high_watermark = 80;
+ sm->default_low_watermark = 50;
}
static clib_error_t *
vlib_cli_command_t * cmd)
{
segment_manager_main_t *smm = &sm_main;
- fifo_segment_t *seg;
- segment_manager_t *sm;
u8 show_segments = 0, verbose = 0;
- char *address;
- size_t size;
- u32 active_fifos;
- u32 free_fifos;
+ segment_manager_t *sm;
+ fifo_segment_t *seg;
+ app_worker_t *app_wrk;
+ application_t *app;
+ u8 custom_logic;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
pool_elts (smm->segment_managers));
if (verbose && pool_elts (smm->segment_managers))
{
- vlib_cli_output (vm, "%-10s%=15s%=12s", "Index", "App Index",
- "Segments");
+ vlib_cli_output (vm, "%-6s%=10s%=10s%=13s%=11s%=11s%=12s",
+ "Index", "AppIndex", "Segments", "MaxFifoSize",
+ "HighWater", "LowWater", "FifoTuning");
/* *INDENT-OFF* */
pool_foreach (sm, smm->segment_managers, ({
- vlib_cli_output (vm, "%-10d%=15d%=12d", segment_manager_index (sm),
- sm->app_wrk_index, pool_elts (sm->segments));
+ app_wrk = app_worker_get_if_valid (sm->app_wrk_index);
+ app = app_wrk ? application_get (app_wrk->app_index) : 0;
+ custom_logic = (app && (app->cb_fns.fifo_tuning_callback)) ? 1 : 0;
+
+ vlib_cli_output (vm, "%-6d%=10d%=10d%=13U%=11d%=11d%=12s",
+ segment_manager_index (sm),
+ sm->app_wrk_index, pool_elts (sm->segments),
+ format_memory_size, sm->max_fifo_size,
+ sm->high_watermark, sm->low_watermark,
+ custom_logic ? "custom" : "none");
}));
/* *INDENT-ON* */
}
if (show_segments)
{
- vlib_cli_output (vm, "%-15s%15s%15s%15s%15s%15s", "Name", "Type",
- "HeapSize (M)", "ActiveFifos", "FreeFifos", "Address");
+ vlib_cli_output (vm, "%U", format_fifo_segment, 0, verbose);
/* *INDENT-OFF* */
pool_foreach (sm, smm->segment_managers, ({
segment_manager_foreach_segment_w_lock (seg, sm, ({
- fifo_segment_info (seg, &address, &size);
- active_fifos = fifo_segment_num_fifos (seg);
- free_fifos = fifo_segment_num_free_fifos (seg, ~0 /* size */);
- vlib_cli_output (vm, "%-15v%15U%15llu%15u%15u%15llx",
- ssvm_name (&seg->ssvm), format_fifo_segment_type,
- seg, size >> 20ULL, active_fifos, free_fifos,
- address);
- if (verbose)
- vlib_cli_output (vm, "%U", format_fifo_segment, seg, verbose);
+ vlib_cli_output (vm, "%U", format_fifo_segment, seg, verbose);
}));
}));
/* *INDENT-ON* */
void
segment_manager_format_sessions (segment_manager_t * sm, int verbose)
{
- fifo_segment_t *fifo_segment;
vlib_main_t *vm = vlib_get_main ();
app_worker_t *app_wrk;
+ fifo_segment_t *fs;
const u8 *app_name;
- u8 *s = 0;
+ int slice_index;
+ u8 *s = 0, *str;
+ svm_fifo_t *f;
if (!sm)
{
clib_rwlock_reader_lock (&sm->segments_rwlock);
/* *INDENT-OFF* */
- pool_foreach (fifo_segment, sm->segments, ({
- svm_fifo_t *fifo;
- u8 *str;
-
- fifo = fifo_segment_get_fifo_list (fifo_segment);
- while (fifo)
+ pool_foreach (fs, sm->segments, ({
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
{
- u32 session_index, thread_index;
- session_t *session;
-
- session_index = fifo->master_session_index;
- thread_index = fifo->master_thread_index;
-
- session = session_get (session_index, thread_index);
- str = format (0, "%U", format_session, session, verbose);
-
- if (verbose)
- s = format (s, "%-40s%-20s%-15u%-10u", str, app_name,
- app_wrk->api_client_index, app_wrk->connects_seg_manager);
- else
- s = format (s, "%-40s%-20s", str, app_name);
-
- vlib_cli_output (vm, "%v", s);
- vec_reset_length (s);
- vec_free (str);
-
- fifo = fifo->next;
+ f = fifo_segment_get_slice_fifo_list (fs, slice_index);
+ while (f)
+ {
+ u32 session_index, thread_index;
+ session_t *session;
+
+ session_index = f->master_session_index;
+ thread_index = f->master_thread_index;
+
+ session = session_get (session_index, thread_index);
+ str = format (0, "%U", format_session, session, verbose);
+
+ if (verbose)
+ s = format (s, "%-40s%-20s%-15u%-10u", str, app_name,
+ app_wrk->api_client_index, app_wrk->connects_seg_manager);
+ else
+ s = format (s, "%-40s%-20s", str, app_name);
+
+ vlib_cli_output (vm, "%v", s);
+ vec_reset_length (s);
+ vec_free (str);
+
+ f = f->next;
+ }
+ vec_free (s);
}
- vec_free (s);
}));
/* *INDENT-ON* */
clib_rwlock_reader_unlock (&sm->segments_rwlock);
}
+void
+segment_manager_set_watermarks (segment_manager_t * sm,
+ u8 high_watermark, u8 low_watermark)
+{
+ ASSERT (high_watermark >= 0 && high_watermark <= 100 &&
+ low_watermark >= 0 && low_watermark <= 100 &&
+ low_watermark <= high_watermark);
+
+ sm->high_watermark = high_watermark;
+ sm->low_watermark = low_watermark;
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff