Re: Fixed RM #1356

On Thu, Jun 16, 2016 at 5:07 PM, Dave Page <dpage(at)pgadmin(dot)org> wrote:

>
>
> On Thu, Jun 16, 2016 at 12:19 PM, Khushboo Vashi <
> khushboo(dot)vashi(at)enterprisedb(dot)com> wrote:
>
>>
>>
>> On Thu, Jun 16, 2016 at 4:42 PM, Dave Page <dpage(at)pgadmin(dot)org> wrote:
>>
>>>
>>>
>>> On Thu, Jun 16, 2016 at 12:04 PM, Akshay Joshi <
>>> akshay(dot)joshi(at)enterprisedb(dot)com> wrote:
>>>
>>>> Hi Dave
>>>>
>>>> On Thu, Jun 16, 2016 at 2:42 PM, Akshay Joshi <akshay.joshi@
>>>> enterprisedb.com> wrote:
>>>>
>>>>>
>>>>>
>>>>> On Thu, Jun 16, 2016 at 2:35 PM, Dave Page <dpage(at)pgadmin(dot)org> wrote:
>>>>>
>>>>>> Thanks, patch applied.
>>>>>>
>>>>>> However, whilst I was testing, I saw just how slow the tool is:
>>>>>>
>>>>>> SELECT * FROM pg_attribute
>>>>>>
>>>>>> In a PEM database, returns 8150 rows. In pgAdmin 3, this is timed at
>>>>>> 676ms on my laptop. In pgAdmin 4, the busy spinner runs for approx 5
>>>>>> seconds, then the whole UI freezes. I then have to wait a further 3 minutes
>>>>>> and 46 seconds(!!!!) for the operation to complete. Once loaded, scrolling
>>>>>> is very sluggish.
>>>>>>
>>>>>> Please make this your top priority - and if you have incremental
>>>>>> improvements, send them as you have them.
>>>>>>
>>>>>
>>>>> Sure.
>>>>>
>>>>
>>>> Below is my initial finding while running "SELECT * FROM
>>>> pg_attribute" on PEM database, returns 8498 rows:
>>>>
>>>> - Fetching data from the server side took consistent time and it
>>>> took 3-4 secs.
>>>> - Create/Render Backgrid without pagination : *1 minute*
>>>> - Create/Render Backgrid with pagination (50 items per page):
>>>> *469ms*
>>>> - Create/Render Backgrid with pagination (500 items per page): *3
>>>> secs*
>>>> - Create/Render Backgrid with pagination (1000 items per page): *6
>>>> secs*
>>>> - Create/Render Backgrid with pagination (3000 items per page):
>>>> *22 secs*
>>>> - Create/Render Backgrid with pagination (5000 items per page): *36
>>>> secs*
>>>>
>>>>
>>> OK, so I guess diving into Backgrid is the next step. Are there any
>>> profiling tools that could be used?
>>>
>>>
>>
>> Can we use infinity scrolling in case of no pagination?
>>
>
> How would add row work then?
>

Yeah, in this case user has to wait till the last record to load. :(
Btw, I was thinking of https://github.com/bhvaleri/backgrid-infinator

>
> --
> Dave Page
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