From owner-svn-src-head@freebsd.org Fri Jan 27 15:03:52 2017 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E3F8FCC37C3; Fri, 27 Jan 2017 15:03:52 +0000 (UTC) (envelope-from mjg@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id BE8F6C; Fri, 27 Jan 2017 15:03:52 +0000 (UTC) (envelope-from mjg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v0RF3pPD043488; Fri, 27 Jan 2017 15:03:51 GMT (envelope-from mjg@FreeBSD.org) Received: (from mjg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v0RF3puM043483; Fri, 27 Jan 2017 15:03:51 GMT (envelope-from mjg@FreeBSD.org) Message-Id: <201701271503.v0RF3puM043483@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mjg set sender to mjg@FreeBSD.org using -f From: Mateusz Guzik Date: Fri, 27 Jan 2017 15:03:51 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r312890 - head/sys/kern X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Jan 2017 15:03:53 -0000 Author: mjg Date: Fri Jan 27 15:03:51 2017 New Revision: 312890 URL: https://svnweb.freebsd.org/changeset/base/312890 Log: Sprinkle __read_mostly on backoff and lock profiling code. MFC after: 1 month Modified: head/sys/kern/kern_lockstat.c head/sys/kern/kern_mutex.c head/sys/kern/kern_rwlock.c head/sys/kern/kern_sx.c head/sys/kern/subr_lock.c Modified: head/sys/kern/kern_lockstat.c ============================================================================== --- head/sys/kern/kern_lockstat.c Fri Jan 27 14:56:36 2017 (r312889) +++ head/sys/kern/kern_lockstat.c Fri Jan 27 15:03:51 2017 (r312890) @@ -27,6 +27,7 @@ __FBSDID("$FreeBSD$"); #include +#include #include #include #include @@ -61,7 +62,7 @@ SDT_PROBE_DEFINE1(lockstat, , , sx__down SDT_PROBE_DEFINE2(lockstat, , , thread__spin, "struct mtx *", "uint64_t"); -int lockstat_enabled = 0; +int __read_mostly lockstat_enabled; uint64_t lockstat_nsecs(struct lock_object *lo) Modified: head/sys/kern/kern_mutex.c ============================================================================== --- head/sys/kern/kern_mutex.c Fri Jan 27 14:56:36 2017 (r312889) +++ head/sys/kern/kern_mutex.c Fri Jan 27 15:03:51 2017 (r312890) @@ -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 mtx_delay = { +static struct lock_delay_config __read_mostly mtx_delay = { .initial = 1000, .step = 500, .min = 100, @@ -171,7 +171,7 @@ LOCK_DELAY_SYSINIT(mtx_delay_sysinit); static SYSCTL_NODE(_debug, OID_AUTO, mtx_spin, CTLFLAG_RD, NULL, "mtx spin debugging"); -static struct lock_delay_config mtx_spin_delay = { +static struct lock_delay_config __read_mostly mtx_spin_delay = { .initial = 1000, .step = 500, .min = 100, Modified: head/sys/kern/kern_rwlock.c ============================================================================== --- head/sys/kern/kern_rwlock.c Fri Jan 27 14:56:36 2017 (r312889) +++ head/sys/kern/kern_rwlock.c Fri Jan 27 15:03:51 2017 (r312890) @@ -100,7 +100,7 @@ static SYSCTL_NODE(_debug, OID_AUTO, rwl 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 rw_delay = { +static struct lock_delay_config __read_mostly rw_delay = { .initial = 1000, .step = 500, .min = 100, Modified: head/sys/kern/kern_sx.c ============================================================================== --- head/sys/kern/kern_sx.c Fri Jan 27 14:56:36 2017 (r312889) +++ head/sys/kern/kern_sx.c Fri Jan 27 15:03:51 2017 (r312890) @@ -148,7 +148,7 @@ static SYSCTL_NODE(_debug, OID_AUTO, sx, 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 sx_delay = { +static struct lock_delay_config __read_mostly sx_delay = { .initial = 1000, .step = 500, .min = 100, Modified: head/sys/kern/subr_lock.c ============================================================================== --- head/sys/kern/subr_lock.c Fri Jan 27 14:56:36 2017 (r312889) +++ head/sys/kern/subr_lock.c Fri Jan 27 15:03:51 2017 (r312890) @@ -213,7 +213,7 @@ struct lock_prof_cpu { struct lock_prof_cpu *lp_cpu[MAXCPU]; -volatile int lock_prof_enable = 0; +volatile int __read_mostly lock_prof_enable; static volatile int lock_prof_resetting; #define LPROF_SBUF_SIZE 256