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authorNils O. SelÄsdal <noselasd@fiane.dyndns.org>2014-01-02 14:04:43 +0100
committerHolger Hans Peter Freyther <holger@moiji-mobile.com>2014-01-02 14:08:11 +0100
commit324470205860303edb6ea213fc8670b2b69a7f11 (patch)
tree7623660b16e858d8d60e09cae4b6da896248f92e /tests/utils
parentb79a148eca01ff8f101662f389b8032ea2d9a535 (diff)
utils: Greatly improve performance of osmo_hexdump routines
In the osmo-bts and libosmo-abis code the hexdump routine is used for every incoming/outgoing packet (including voice frames) and the usage of snprintf showed up inside profiles. There is a semantic change when more than 4096 characters are used. The code will now truncate at byte boundaries (and not nibbles). Code: static const int lengths[] = { 23, 1000, 52 }; char buf[4096]; int i; for (i = 0; i < 30000; ++i) char *res = osmo_hexdump(buf, lengths[i & 3]); Results: before: after: real 0m3.233s real 0m0.085s user 0m3.212s user 0m0.084s sys 0m0.000s sys 0m0.000s
Diffstat (limited to 'tests/utils')
-rw-r--r--tests/utils/utils_test.ok2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/utils/utils_test.ok b/tests/utils/utils_test.ok
index 15dbf44f..50a57473 100644
--- a/tests/utils/utils_test.ok
+++ b/tests/utils/utils_test.ok
@@ -2,4 +2,4 @@ Plain dump
00 01 02 03
Corner case
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