locate and updatedb

[Marco Atzeri]

On 11/02/2016 19:33, Byron Boulton wrote:
> On 2/11/2016 1:18 PM, cyg Simple wrote:
>> On 2/11/2016 9:00 AM, Byron Boulton wrote:
>>> Does anyone here have success using `updatedb` and `locate` in cygwin? I
>>> use `locate` heavily on my Linux machines, but everytime I've tried to
>>> run `updatedb` on cygwin I've given up and killed the process because it
>>> is taking too long. Is there something wrong with cygwin's
>>> implementation of `updatedb` making it not work at all or making it
>>> slower that on my Linux machines? Or are there others who have success
>>> using it on cygwin?
>>
>> Processing every file on the drive will be slow just because it's
>> Windows.  Initializing the database with updatedb will require a large
>> amount of time.  There are processes such as AntiVirus intrusion
>> protection that might make it even slower.
>>
> Hmmm, the reason the slowness is particuarly strange to me is that in
> place of using `locate` from my cygwin terminal, I have to use a program
> called "Everything Search Engine" available at www.voidtools.com. The
> first time I install it, it takes maybe a few minutes to index the hard
> drive, then every once in a while when I open the program it takes a few
> seconds to update the index, but in general the performance for indexing
> and searching the index if comparable to `updatedb` and `locate` on a
> Linux machine, so it's possible to do on Windows.
>
> Byron
>

the time taken from updatedb is mainly due to
the execution time of "find" on the disks.

It takes ~ 70 minutes for my 500 GB of data,
and likely the AV is impacting the execution.

I suspect voidtools is using MS disk indexing
to speed up the things for it.


Regards
Marco




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