I've got a process doing some calculations on a timer and sending
updated table to another process. Its heap is more than 3x of used even
after manual trigger of .Q.gc. key value used 567774096 heap 1946157056
peak 2617245696 I'm using KDB+ 4.0 2021....
I created a virtual query which clears some view states and set it as
data source for an action. It works as expected when action is triggered
but I found out that it is also executed at page load. If I pass
parameters to the dashboard they are now c...
I'm trying to chart my data using R directly from q. The plot is opening
up but the window is not responsive, can't be resized and it's marked as
(Not Responding) by windows. I can close it by running dev.off() but it
won't open up straight away the ...
Hi All,I'm running a 32bit version, KDB+ 3.3 2015.08.23 Copyright (C)
1993-2015 Kx Systemsl32/ 4()core 7893MB Using TorQ WDB and
TickerLogReplay - both crash on sorting my data with wsfull. I'm sorting
a quote table of about 70M records.The problem c...
To replicate the issue please copy position table twice, like you did
with the cloud edition. It's the second copy that takes and not releases
the memory. I'm not running a cloud edition but the windows version:
KDB+ 4.0 2021.04.26 Copyright (C) 1993...
My table has 54 columns of various simple types, mainly floats, symbols,
ints and timestamps. Each column is of around 2Mb in size. I can
reproduce it with your code by dropping n to 2000000, which makes
columns similar in size to my case. .Q.gc do...
Thanks, I found one of the causes - code that brings and refreshes a
large table from another process. I'm starting a fresh process and
bringing in a table of 107Mb. The heap settles to 268Mb after .Q.gc.
However after updating this table the heap ...
Thanks David, I got it working now. I was confused at first as there's
no way to set a view state to a value in an action for a DataGrid, it
can only copy from a cell. I adapted your solution and used the Row Id
column instead of 'true', so in my cas...