Sprinkle __read_frequently on few obvious places.
Note that some of annotated variables should probably change their types to something smaller, preferably bit-sized.
This commit is contained in:
parent
cf558f10a7
commit
574adb65c8
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=323236
@ -54,7 +54,7 @@ dtrace_doubletrap_func_t dtrace_doubletrap_func;
|
||||
dtrace_pid_probe_ptr_t dtrace_pid_probe_ptr;
|
||||
dtrace_return_probe_ptr_t dtrace_return_probe_ptr;
|
||||
|
||||
systrace_probe_func_t systrace_probe_func;
|
||||
systrace_probe_func_t __read_frequently systrace_probe_func;
|
||||
|
||||
/* Return the DTrace process data size compiled in the kernel hooks. */
|
||||
size_t
|
||||
|
@ -62,7 +62,7 @@ SDT_PROBE_DEFINE1(lockstat, , , sx__downgrade, "struct sx *");
|
||||
|
||||
SDT_PROBE_DEFINE2(lockstat, , , thread__spin, "struct mtx *", "uint64_t");
|
||||
|
||||
volatile int __read_mostly lockstat_enabled;
|
||||
volatile int __read_frequently lockstat_enabled;
|
||||
|
||||
uint64_t
|
||||
lockstat_nsecs(struct lock_object *lo)
|
||||
|
@ -140,7 +140,7 @@ struct lock_class lock_class_mtx_spin = {
|
||||
#ifdef ADAPTIVE_MUTEXES
|
||||
static SYSCTL_NODE(_debug, OID_AUTO, mtx, CTLFLAG_RD, NULL, "mtx debugging");
|
||||
|
||||
static struct lock_delay_config __read_mostly mtx_delay;
|
||||
static struct lock_delay_config __read_frequently mtx_delay;
|
||||
|
||||
SYSCTL_INT(_debug_mtx, OID_AUTO, delay_base, CTLFLAG_RW, &mtx_delay.base,
|
||||
0, "");
|
||||
@ -153,7 +153,7 @@ LOCK_DELAY_SYSINIT_DEFAULT(mtx_delay);
|
||||
static SYSCTL_NODE(_debug, OID_AUTO, mtx_spin, CTLFLAG_RD, NULL,
|
||||
"mtx spin debugging");
|
||||
|
||||
static struct lock_delay_config __read_mostly mtx_spin_delay;
|
||||
static struct lock_delay_config __read_frequently mtx_spin_delay;
|
||||
|
||||
SYSCTL_INT(_debug_mtx_spin, OID_AUTO, delay_base, CTLFLAG_RW,
|
||||
&mtx_spin_delay.base, 0, "");
|
||||
|
@ -93,14 +93,14 @@ struct lock_class lock_class_rw = {
|
||||
};
|
||||
|
||||
#ifdef ADAPTIVE_RWLOCKS
|
||||
static int rowner_retries = 10;
|
||||
static int rowner_loops = 10000;
|
||||
static int __read_frequently rowner_retries = 10;
|
||||
static int __read_frequently rowner_loops = 10000;
|
||||
static SYSCTL_NODE(_debug, OID_AUTO, rwlock, CTLFLAG_RD, NULL,
|
||||
"rwlock debugging");
|
||||
SYSCTL_INT(_debug_rwlock, OID_AUTO, retry, CTLFLAG_RW, &rowner_retries, 0, "");
|
||||
SYSCTL_INT(_debug_rwlock, OID_AUTO, loops, CTLFLAG_RW, &rowner_loops, 0, "");
|
||||
|
||||
static struct lock_delay_config __read_mostly rw_delay;
|
||||
static struct lock_delay_config __read_frequently rw_delay;
|
||||
|
||||
SYSCTL_INT(_debug_rwlock, OID_AUTO, delay_base, CTLFLAG_RW, &rw_delay.base,
|
||||
0, "");
|
||||
|
@ -142,13 +142,13 @@ struct lock_class lock_class_sx = {
|
||||
#endif
|
||||
|
||||
#ifdef ADAPTIVE_SX
|
||||
static u_int asx_retries = 10;
|
||||
static u_int asx_loops = 10000;
|
||||
static __read_frequently u_int asx_retries = 10;
|
||||
static __read_frequently u_int asx_loops = 10000;
|
||||
static SYSCTL_NODE(_debug, OID_AUTO, sx, CTLFLAG_RD, NULL, "sxlock debugging");
|
||||
SYSCTL_UINT(_debug_sx, OID_AUTO, retries, CTLFLAG_RW, &asx_retries, 0, "");
|
||||
SYSCTL_UINT(_debug_sx, OID_AUTO, loops, CTLFLAG_RW, &asx_loops, 0, "");
|
||||
|
||||
static struct lock_delay_config __read_mostly sx_delay;
|
||||
static struct lock_delay_config __read_frequently sx_delay;
|
||||
|
||||
SYSCTL_INT(_debug_sx, OID_AUTO, delay_base, CTLFLAG_RW, &sx_delay.base,
|
||||
0, "");
|
||||
|
@ -96,7 +96,7 @@ static SYSCTL_NODE(_security, OID_AUTO, audit, CTLFLAG_RW, 0,
|
||||
*
|
||||
* Define the audit control flags.
|
||||
*/
|
||||
int audit_enabled;
|
||||
int __read_frequently audit_enabled;
|
||||
int audit_suspended;
|
||||
|
||||
/*
|
||||
|
Loading…
Reference in New Issue
Block a user