Date: Wed, 30 Jan 2013 11:02:39 +0100 From: "Ronald Klop" <ronald-freebsd8@klop.yi.org> To: svn-src-all@freebsd.org Subject: Re: svn commit: r246032 - in head/sys: sys vm Message-ID: <op.wrpx6pvs8527sy@ronaldradial.versatec.local> In-Reply-To: <201301281254.r0SCsrPK070947@svn.freebsd.org> References: <201301281254.r0SCsrPK070947@svn.freebsd.org>
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On Mon, 28 Jan 2013 13:54:53 +0100, Andrey Zonov <zont@freebsd.org> wrote: > Author: zont > Date: Mon Jan 28 12:54:53 2013 > New Revision: 246032 > URL: http://svnweb.freebsd.org/changeset/base/246032 > > Log: > - Add system wide page faults requiring I/O counter. > Reviewed by: alc > MFC after: 2 weeks Sounds very useful! Ronald. > Modified: > head/sys/sys/vmmeter.h > head/sys/vm/vm_fault.c > head/sys/vm/vm_meter.c > > Modified: head/sys/sys/vmmeter.h > ============================================================================== > --- head/sys/sys/vmmeter.h Mon Jan 28 12:50:16 2013 (r246031) > +++ head/sys/sys/vmmeter.h Mon Jan 28 12:54:53 2013 (r246032) > @@ -61,6 +61,7 @@ struct vmmeter { > * Virtual memory activity. > */ > u_int v_vm_faults; /* (p) address memory faults */ > + u_int v_io_faults; /* (p) page faults requiring I/O */ > u_int v_cow_faults; /* (p) copy-on-writes faults */ > u_int v_cow_optim; /* (p) optimized copy-on-writes faults */ > u_int v_zfod; /* (p) pages zero filled on demand */ > > Modified: head/sys/vm/vm_fault.c > ============================================================================== > --- head/sys/vm/vm_fault.c Mon Jan 28 12:50:16 2013 (r246031) > +++ head/sys/vm/vm_fault.c Mon Jan 28 12:54:53 2013 (r246032) > @@ -939,9 +939,10 @@ vnode_locked: > * Unlock everything, and return > */ > unlock_and_deallocate(&fs); > - if (hardfault) > + if (hardfault) { > + PCPU_INC(cnt.v_io_faults); > curthread->td_ru.ru_majflt++; > - else > + } else > curthread->td_ru.ru_minflt++; > return (KERN_SUCCESS); > > Modified: head/sys/vm/vm_meter.c > ============================================================================== > --- head/sys/vm/vm_meter.c Mon Jan 28 12:50:16 2013 (r246031) > +++ head/sys/vm/vm_meter.c Mon Jan 28 12:54:53 2013 (r246032) > @@ -283,6 +283,7 @@ VM_STATS_SYS(v_syscall, "System calls"); > VM_STATS_SYS(v_intr, "Device interrupts"); > VM_STATS_SYS(v_soft, "Software interrupts"); > VM_STATS_VM(v_vm_faults, "Address memory faults"); > +VM_STATS_VM(v_io_faults, "Page faults requiring I/O"); > VM_STATS_VM(v_cow_faults, "Copy-on-write faults"); > VM_STATS_VM(v_cow_optim, "Optimized COW faults"); > VM_STATS_VM(v_zfod, "Pages zero-filled on demand"); > _______________________________________________ > svn-src-all@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/svn-src-all > To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org"
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