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authorDave Barach <dave@barachs.net>2017-09-01 19:12:11 -0400
committerFlorin Coras <florin.coras@gmail.com>2017-09-06 18:30:55 +0000
commit91f3e744a37b9f6f3c87ac45e54142f16fd2d3d5 (patch)
treecbb3e1c008206a3209538dc41f8901bb10b7ca9c /src/vnet/session/segment_manager.c
parent2951d901a5b6ac48b0203b2da9e35ea419b9b4d6 (diff)
Improve "show segment-manager segments"
Clean up private-segment fifo preallocation Change-Id: I53c630ed81d48f2832a204992d73635536926983 Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src/vnet/session/segment_manager.c')
-rw-r--r--src/vnet/session/segment_manager.c54
1 files changed, 48 insertions, 6 deletions
diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c
index 7cf66ee35b2..c23e4c0237c 100644
--- a/src/vnet/session/segment_manager.c
+++ b/src/vnet/session/segment_manager.c
@@ -74,6 +74,11 @@ session_manager_add_segment_i (segment_manager_t * sm, u32 segment_size,
}
else
{
+ u32 rx_fifo_size, tx_fifo_size, rx_rounded_data_size,
+ tx_rounded_data_size;
+ u32 approx_segment_count;
+ u64 approx_total_size;
+
ca->segment_name = "process-private-segment";
ca->segment_size = ~0;
ca->rx_fifo_size = sm->properties->rx_fifo_size;
@@ -82,6 +87,36 @@ session_manager_add_segment_i (segment_manager_t * sm, u32 segment_size,
ca->private_segment_count = sm->properties->private_segment_count;
ca->private_segment_size = sm->properties->private_segment_size;
+ /* Default to a small private segment */
+ if (ca->private_segment_size == 0)
+ ca->private_segment_size = 128 << 20;
+
+ /* Calculate space requirements */
+ rx_rounded_data_size = (1 << (max_log2 (ca->rx_fifo_size)));
+ tx_rounded_data_size = (1 << (max_log2 (ca->tx_fifo_size)));
+
+ rx_fifo_size = sizeof (svm_fifo_t) + rx_rounded_data_size;
+ tx_fifo_size = sizeof (svm_fifo_t) + tx_rounded_data_size;
+
+ approx_total_size = (u64) ca->preallocated_fifo_pairs
+ * (rx_fifo_size + tx_fifo_size);
+ approx_segment_count =
+ (approx_total_size +
+ (ca->private_segment_size - 1)) / (u64) ca->private_segment_size;
+
+ /* The user asked us to figure it out... */
+ if (ca->private_segment_count == 0)
+ {
+ ca->private_segment_count = approx_segment_count;
+ }
+ /* Follow directions, but issue a warning */
+ else if (approx_segment_count != ca->private_segment_count)
+ {
+ clib_warning
+ ("Honoring segment count %u, but calculated count was %u",
+ ca->private_segment_count, approx_segment_count);
+ }
+
if (svm_fifo_segment_create_process_private (ca))
clib_warning ("Failed to create process private segment");
@@ -503,7 +538,9 @@ segment_manager_show_fn (vlib_main_t * vm, unformat_input_t * input,
u8 show_segments = 0, verbose = 0, *name;
uword address;
u64 size;
- u32 fifos;
+ u32 active_fifos;
+ u32 free_fifos;
+
mheap_t *heap_header;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
@@ -536,8 +573,8 @@ segment_manager_show_fn (vlib_main_t * vm, unformat_input_t * input,
segments = svm_fifo_segment_segments_pool ();
vlib_cli_output (vm, "%d svm fifo segments allocated",
pool_elts (segments));
- vlib_cli_output (vm, "%-20s%=12s%=12s%=15s", "Name", "Size (M)",
- "Fifos", "Address");
+ vlib_cli_output (vm, "%-20s%=12s%=16s%=16s%=16s", "Name",
+ "HeapSize (M)", "ActiveFifos", "FreeFifos", "Address");
/* *INDENT-OFF* */
pool_foreach (seg, segments, ({
@@ -557,9 +594,14 @@ segment_manager_show_fn (vlib_main_t * vm, unformat_input_t * input,
size = seg->ssvm.ssvm_size;
name = seg->ssvm.sh->name;
}
- fifos = svm_fifo_segment_num_fifos (seg);
- vlib_cli_output (vm, "%-20s%=12u%=12u%=15x", name, size << 20, fifos,
+ active_fifos = svm_fifo_segment_num_fifos (seg);
+ free_fifos = svm_fifo_segment_num_free_fifos (seg, ~0 /* size */);
+ vlib_cli_output (vm, "%-20v%=16llu%=16u%=16u%16llx",
+ name, size >> 20ULL, active_fifos, free_fifos,
address);
+ if (verbose)
+ vlib_cli_output (vm, "%U",
+ format_svm_fifo_segment, seg, verbose);
if (seg->h->flags & FIFO_SEGMENT_F_IS_PRIVATE)
vec_free (name);
}));
@@ -573,7 +615,7 @@ segment_manager_show_fn (vlib_main_t * vm, unformat_input_t * input,
VLIB_CLI_COMMAND (segment_manager_show_command, static) =
{
.path = "show segment-manager",
- .short_help = "show segment-manager [segments]",
+ .short_help = "show segment-manager [segments][verbose]",
.function = segment_manager_show_fn,
};
/* *INDENT-ON* */