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Titan Session Cache

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1. Added a new build option for a TITAN session cache that can hold just over 2 million session entires.
2. Reordered the cache options from largest to smallest.
This commit is contained in:
John Safranek
2019-07-16 11:21:08 -07:00
parent 43e391528d
commit c0a4143942
2 changed files with 32 additions and 12 deletions
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27
configure.ac
View File

@ -665,16 +665,16 @@ then
fi fi
# big cache # TITAN cache
AC_ARG_ENABLE([bigcache], AC_ARG_ENABLE([titancache],
[AS_HELP_STRING([--enable-bigcache],[Enable big session cache (default: disabled)])], [AS_HELP_STRING([--enable-titancache],[Enable titan session cache (default: disabled)])],
[ ENABLED_BIGCACHE=$enableval ], [ ENABLED_TITANCACHE=$enableval ],
[ ENABLED_BIGCACHE=no ] [ ENABLED_TITANCACHE=no ]
) )
if test "$ENABLED_BIGCACHE" = "yes" if test "$ENABLED_TITANCACHE" = "yes"
then then
AM_CFLAGS="$AM_CFLAGS -DBIG_SESSION_CACHE" AM_CFLAGS="$AM_CFLAGS -DTITAN_SESSION_CACHE"
fi fi
@ -691,6 +691,19 @@ then
fi fi
# big cache
AC_ARG_ENABLE([bigcache],
[AS_HELP_STRING([--enable-bigcache],[Enable big session cache (default: disabled)])],
[ ENABLED_BIGCACHE=$enableval ],
[ ENABLED_BIGCACHE=no ]
)
if test "$ENABLED_BIGCACHE" = "yes"
then
AM_CFLAGS="$AM_CFLAGS -DBIG_SESSION_CACHE"
fi
# SMALL cache # SMALL cache
AC_ARG_ENABLE([smallcache], AC_ARG_ENABLE([smallcache],
[AS_HELP_STRING([--enable-smallcache],[Enable small session cache (default: disabled)])], [AS_HELP_STRING([--enable-smallcache],[Enable small session cache (default: disabled)])],

17
src/ssl.c
View File

@ -4613,22 +4613,29 @@ int AddCA(WOLFSSL_CERT_MANAGER* cm, DerBuffer** pDer, int type, int verify)
/* basic config gives a cache with 33 sessions, adequate for clients and /* basic config gives a cache with 33 sessions, adequate for clients and
embedded servers embedded servers
MEDIUM_SESSION_CACHE allows 1055 sessions, adequate for servers that TITAN_SESSION_CACHE allows just over 2 million sessions, for servers
aren't under heavy load, basically allows 200 new sessions per minute with titanic amounts of memory with long session ID timeouts and high
levels of traffic.
BIG_SESSION_CACHE yields 20,027 sessions
HUGE_SESSION_CACHE yields 65,791 sessions, for servers under heavy load, HUGE_SESSION_CACHE yields 65,791 sessions, for servers under heavy load,
allows over 13,000 new sessions per minute or over 200 new sessions per allows over 13,000 new sessions per minute or over 200 new sessions per
second second
BIG_SESSION_CACHE yields 20,027 sessions
MEDIUM_SESSION_CACHE allows 1055 sessions, adequate for servers that
aren't under heavy load, basically allows 200 new sessions per minute
SMALL_SESSION_CACHE only stores 6 sessions, good for embedded clients SMALL_SESSION_CACHE only stores 6 sessions, good for embedded clients
or systems where the default of nearly 3kB is too much RAM, this define or systems where the default of nearly 3kB is too much RAM, this define
uses less than 500 bytes RAM uses less than 500 bytes RAM
default SESSION_CACHE stores 33 sessions (no XXX_SESSION_CACHE defined) default SESSION_CACHE stores 33 sessions (no XXX_SESSION_CACHE defined)
*/ */
#ifdef HUGE_SESSION_CACHE #if defined(TITAN_SESSION_CACHE)
#define SESSIONS_PER_ROW 31
#define SESSION_ROWS 64937
#elif defined(HUGE_SESSION_CACHE)
#define SESSIONS_PER_ROW 11 #define SESSIONS_PER_ROW 11
#define SESSION_ROWS 5981 #define SESSION_ROWS 5981
#elif defined(BIG_SESSION_CACHE) #elif defined(BIG_SESSION_CACHE)