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| author | Christophe Jaillet <jailletc36@apache.org> | 2023-02-19 16:15:03 +0100 |
|---|---|---|
| committer | Christophe Jaillet <jailletc36@apache.org> | 2023-02-19 16:15:03 +0100 |
| commit | 994d6cd45d1400446ed0e854771d4bda43e123e4 (patch) | |
| tree | 03d40e5b6f3bc797b1f31feb4087ee06023ab338 /docs | |
| parent | fr doc rebuild. (diff) | |
| download | apache2-994d6cd45d1400446ed0e854771d4bda43e123e4.tar.xz apache2-994d6cd45d1400446ed0e854771d4bda43e123e4.zip | |
Re-order the fields of 'struct h2_session_props' to avoid a hole and some padding.
On x86_64, this shrinks the size of the struct from 40 to 32 bytes.
Before the patch, pahole states that:
struct h2_session_props {
int accepted_max; /* 0 4 */
int completed_max; /* 4 4 */
int emitted_count; /* 8 4 */
int emitted_max; /* 12 4 */
int error; /* 16 4 */
/* XXX 4 bytes hole, try to pack */
const char * error_msg; /* 24 8 */
unsigned int accepting:1; /* 32: 0 4 */
unsigned int shutdown:1; /* 32: 1 4 */
/* size: 40, cachelines: 1, members: 8 */
/* sum members: 28, holes: 1, sum holes: 4 */
/* sum bitfield members: 2 bits (0 bytes) */
/* padding: 4 */
/* bit_padding: 30 bits */
/* last cacheline: 40 bytes */
};
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1907756 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'docs')
0 files changed, 0 insertions, 0 deletions