On Sat, 14 Jul 2001, Andrew Morton wrote:
> Marcelo Tosatti wrote:
> >
> > Hi Linus,
> >
> > The following patch adds detailed VM statistics (reported via /proc/stats)
> > which is tunable on/off by the CONFIG_VM_STATS option.
>
> We need this, bad. Two suggested changes:
>
> >
> > +#define VM_STAT_INC_PTEUNMAP(zone) zone->stat.vm_pteunmap++;
>
> All these macros are a waste of space :)
>
> Much better to have:
>
> #define VM_STAT_ZONE(zone, op) zone->stat.op
>
> Then, at the call site:
>
> VM_STAT_ZONE(some_zone, vm_pteunmap++);
>
> Or, if you prefer,
>
> #define VM_STAT_ZONE_INC(zone, field) zone->field++
>
> That way, you don't have to add a new macro each time
> you add a new field.
You're right. Will do that.
> Also, a sysrq key which dumps the stats out, please - when
> your box has wedged there ain't no way you'll be running
> vmstat.
Agreed.
Thanks for your comments.
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This archive was generated by hypermail 2b29 : Sun Jul 15 2001 - 21:00:20 EST