[Glass] rest api returning large result

[Johan Brichau]

The problem seems to be in `ZnUtils>>nextPutAll:on:` that splits the collection into chunks to write it to the Socket.
When I remove that method and just pass through the writing of the collection as `stream nextPutAll: collection`, I go from 39s to 1s (see below, before and after)

Now: understand why that piece of code is there and if it’s needed or not :-)

Johan

johanbrichau at JohansMacBookAir ~ % time curl http://localhost:8383/test --output bla.txt
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 55.2M  100 55.2M    0     0  1465k      0  0:00:38  0:00:38 --:--:-- 1476k
curl http://localhost:8383/test -output bla.txt  0.04s user 0.14s system 0% cpu 38.657 total


johanbrichau at JohansMacBookAir ~ % time curl http://localhost:8383/test --output bla.txt
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 55.2M  100 55.2M    0     0  45.0M      0  0:00:01  0:00:01 --:--:-- 45.0M
curl http://localhost:8383/test --output bla.txt  0.01s user 0.07s system 6% cpu 1.255 total


> On 23 May 2024, at 23:45, Johan Brichau <johan at yesplan.be> wrote:
> 
> Hi Otto,
> 
>> On 20 May 2024, at 19:08, Otto Behrens <otto at finworks.biz> wrote:
>> 
>> Okay, I’ll give that a try and see what I can get when using the Zinc adaptor in GemStone…
> 
> 
> It took me a bit longer to actually get started since I wanted to debug this on my Mac using a GsDevKit_stones setup and I had to dig into another rabbit hole first :-)
> Anyway, I setup the simple handler below and I can confirm also notice that a file of 60MB takes 40s to be served and 28MB takes 10s. 
> 
> In Pharo, the 60MB file takes 3s.
> I’ll dive into this a bit more tomorrow…..
> 
> get
> 
> <get>
> <path: '/'>
> <produces: 'application/json'>
> 
> | file |
> file := GsFile openReadOnServer: '/Users/johanbrichau/testfile'.
> ^ file contents
> 

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