OPTIM: session: reorder struct session fields

A reorering of the struct session fields has increased overall performance
by almost 1% due to better cache usage.

diff --git a/include/types/session.h b/include/types/session.h
index 54f0551c800ca16d5fb01e74efc996ac88672245..e3ccde8ed7ab2beccf7930454a9dc2efd9634b9d 100644 (file)
--- a/include/types/session.h
+++ b/include/types/session.h
@@ -104,23 +104,26 @@
  *    server should eventually be released.
  */
 struct session {
-       struct list list;                       /* position in global sessions list */
-       struct list by_srv;                     /* position in server session list */
-       struct list back_refs;                  /* list of users tracking this session */
-       struct task *task;                      /* the task associated with this session */
-       /* application specific below */
-       struct listener *listener;              /* the listener by which the request arrived */
-       struct proxy *fe;                       /* the proxy this session depends on for the client side */
-       struct proxy *be;                       /* the proxy this session depends on for the server side */
        int flags;                              /* some flags describing the session */
+       struct target target;                   /* target to use for this session */
+
        struct channel *req;                    /* request buffer */
        struct channel *rep;                    /* response buffer */
-       struct stream_interface si[2];          /* client and server stream interfaces */
+
+       struct proxy *fe;                       /* the proxy this session depends on for the client side */
+       struct proxy *be;                       /* the proxy this session depends on for the server side */
+
+       struct listener *listener;              /* the listener by which the request arrived */
        struct server *srv_conn;                /* session already has a slot on a server and is not in queue */
-       struct target target;                   /* target to use for this session */
        struct pendconn *pend_pos;              /* if not NULL, points to the position in the pending queue */
+
        struct http_txn txn;                    /* current HTTP transaction being processed. Should become a list. */
 
+       struct task *task;                      /* the task associated with this session */
+       struct list list;                       /* position in global sessions list */
+       struct list by_srv;                     /* position in server session list */
+       struct list back_refs;                  /* list of users tracking this session */
+
        struct {
                struct stksess *ts;
                struct stktable *table;
@@ -133,6 +136,7 @@ struct session {
        struct stksess *stkctr2_entry;          /* entry containing counters currently being tracked as set 2 by this session */
        struct stktable *stkctr2_table;         /* table the counters above belong to (undefined if counters are null) */
 
+       struct stream_interface si[2];          /* client and server stream interfaces */
        struct {
                int logwait;                    /* log fields waiting to be collected : LW_* */
                struct timeval accept_date;     /* date of the accept() in user date */