I have two sql using parquet-arrow: I add profile for io-throughput(Yeah, drop page-cache and just watch disk-io). I found: Parquet on HDFS: sql2 ...
I have two sql using parquet-arrow: I add profile for io-throughput(Yeah, drop page-cache and just watch disk-io). I found: Parquet on HDFS: sql2 ...
We want to display customer (actually customer-group) specific information on product detail pages in Shopware 6. There seems to be the HTTP cache an ...
I am trying to implement caching in rails and wants to cache whole homepage. So far the quickiest way is to use cache_page :home method in controller ...
My understanding is that I can keep a file in memory by doing an mmap on the file and then calling mlock on the mapped memory. Is there a way to keep ...
According to mmap's manual: MAP_NORESERVE Do not reserve swap space for this mapping. When swap space is reserved, one has the guarantee that it ...
I am using W3 Total Cache on a Woocommerce website with the default Storefront theme and I am experiencing dificulties with product category pages (li ...
For instance, open a file twice, direct-io writes with one fd, and page cache reads with the other? How to define safe: Write some data from direct-i ...
I apologize if this has already been answered, I just came across some textbook references that seem to be using the terms "page cache" and "disk cach ...
I'm updating a site from rails 4.2 to 5.1 In the previous setup I have page caching on a generated stylesheet (per tenant), all working perfectly. A ...
I was trying to implement page caching in Yii2 advanced project and everything seemed to be super cool. And suddenly I was hit by a strange issue. Ca ...
According to general notions about the page cache and this answer the system file cache essentially uses all the RAM not used by any other process. Th ...
Assume I have a simple program that does the following: Will I be guaranteed that readBuffer == writeBuffer? (Given no other fd to this file is cur ...
As far as i know HTML cache will generate a static html file but CSRF needs to be refreshed on each time load page so is there a way to make CSRF toke ...
I use UBIFS for rootfs on NAND. When I edited a file like /etc/rc.local with nano command and saveed it, "cat /etc/rc.local" shows the editted content ...
We are developing an app which will display a button on product details page to perform some actions. We are using product.metaifields for displaying ...
I've been running Kafka on Kubernetes without any major issue for a while now; however, I recently introduced a cluster of Cassandra pods and started ...
I have dynamic block with show and hide products from table on random sort. But when the cash page is active, this part of page stom showing products ...
Background : in Java I'm memory mapping a file (shared). I'm writing some value at the address 0 of that file. I understand the corresponding PAGE in ...
To ask the question another way, can you confirm that when you mmap() a file that you do in fact access the exact physical pages that are already in t ...
I have blog via yii2 and using page caching my post table has primary key as id ; how to I set sql as separate page cache per post id ? thank you ...