Hi Maciej,
Maciej Browarski wrote:
> Hello,
> I'm using iotime.d from dtrace guide:
> io:::start
> {
> start[args[0]->b_edev, args[0]->b_blkno] = timestamp;
> }
>
> but with 48 disks systems i'd like monitor only 2-3 disks.
> I like using in predicate:
> /(args[0]->b_edev == "sd6")/
> but dtrace write me type mismatch,
> Also trying:
> ((string)args[0]->b_edev == "sd6")/
> make me also errors,
> How this predicate should be to monitor for only sd6 and sd7 ?
>
The b_edev value is a device number, not a string. You either need to
get the device number for sd6, or use the devinfo_t argument,
/args[1]->dev_statname == "sd6"/
for the predicate.
max
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