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authorGravatar Alistair Veitch <aveitch@google.com>2016-01-20 09:17:11 -0800
committerGravatar Alistair Veitch <aveitch@google.com>2016-01-20 09:17:11 -0800
commit8e5b21fd9faf0b1ba2f74e88fe7e59bc3d5ed299 (patch)
tree56e8a033b203f2ffa79e68348bd525d12990e8bb /src/core/census
parent4bbdb825677bde8e53cbab58ad4193c505dc9a50 (diff)
comment updates
Diffstat (limited to 'src/core/census')
-rw-r--r--src/core/census/tag_set.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/core/census/tag_set.c b/src/core/census/tag_set.c
index 718cfe3b25..3b5d345910 100644
--- a/src/core/census/tag_set.c
+++ b/src/core/census/tag_set.c
@@ -56,7 +56,8 @@
// are to aid in efficient parsing and the ability to directly return key
// strings. This is more important than saving a single byte/tag on the wire.
// * The wire encoding uses only single byte values. This eliminates the need
-// to handle endian-ness conversions.
+// to handle endian-ness conversions. It also means there is a hard upper
+// limit of 255 for both CENSUS_MAX_TAG_KV_LEN and CENSUS_MAX_PROPAGATED_TAGS.
// * Keep all tag information (keys/values/flags) in a single memory buffer,
// that can be directly copied to the wire. This makes iteration by index
// somewhat less efficient. If it becomes a problem, we could consider