[master] 3c09eb39c h2_vsl_frame: Exit early if masked
Nils Goroll
nils.goroll at uplex.de
Mon May 22 13:11:06 UTC 2023
commit 3c09eb39c70788a372a6f75eed34feeaf20a6d46
Author: Dag Haavi Finstad <daghf at varnish-software.com>
Date: Mon May 22 10:57:09 2023 +0200
h2_vsl_frame: Exit early if masked
The VSB bits in here come with a very significant performance penalty
for H2 request body processing.
diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c
index c1ced04b6..5b66795b0 100644
--- a/bin/varnishd/http2/cache_http2_proto.c
+++ b/bin/varnishd/http2/cache_http2_proto.c
@@ -243,6 +243,10 @@ h2_vsl_frame(const struct h2_sess *h2, const void *ptr, size_t len)
const char *p;
unsigned u;
+ if (VSL_tag_is_masked(SLT_H2RxHdr) &&
+ VSL_tag_is_masked(SLT_H2RxBody))
+ return;
+
AN(ptr);
assert(len >= 9);
b = ptr;
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