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New posts in performance
why Spark is not distributing jobs to all executors, but to only one executer?
Jun 05, 2022
performance
configuration
apache-spark
distributed-computing
spark-streaming
MySQL (id >= N AND col2 IS NULL) query unexpectedly slow for large N
Oct 19, 2022
mysql
performance
IOS - Best practice to handle large number of images (Performance + Size on disk)
Aug 12, 2021
ios
xcode
image
performance
size
C Disk I/O - write after read at the same offset of a file will make read throughput very low
Sep 16, 2021
c
performance
read-write
throughput
disk-io
Open WPF window is slow due to layout affecting
Sep 12, 2022
c#
wpf
performance
xaml
layout
php performance issue in while loop
Sep 12, 2022
php
performance
while-loop
Why does Excel VBA run significantly faster when Outlook is closed?
Feb 24, 2022
performance
vba
excel
outlook
Profiling Swift with Instruments, what exactly is _swift_retain_?
Mar 11, 2019
ios
swift
performance
instruments
bulk.find.update() vs update.collection(multi=true) in mongo
Feb 03, 2022
performance
mongodb
mongodb-query
updates
Speed test between size units: rem, em and px
Aug 30, 2017
css
performance
paint
font-size
Ring Allocator For Lockfree Update of Member Variable?
Jun 18, 2022
c++
performance
data-structures
dynamic-memory-allocation
lock-free
Is there any real benefit using crosswalk for Android 4.4 & above?
Dec 04, 2017
android
performance
cordova
ionic-framework
crosswalk-runtime
Difference between CTE, Temp Table and Table Variable in MSSQL
Nov 03, 2022
sql
sql-server
performance
common-table-expression
temp-tables
How to render React components only once on startup?
Jul 09, 2020
javascript
performance
reactjs
React much slower on Firefox than Chrome?
Nov 15, 2018
performance
firefox
flexbox
Shouldn't be 3x3 convolution much faster on GPU (OpenCL)
Feb 12, 2022
c
performance
opencl
gpgpu
convolution
Theano switch row-wise efficiently
Dec 06, 2019
performance
theano
boolean-logic
php-fpm7.1 mmap/munmap (very) slow performance on virtualized systems (hugepage)
Mar 27, 2022
php
c
performance
mmap
huge-pages
Postgresql index seq scan 100 million rows
Jun 15, 2022
postgresql
performance
indexing
sql-execution-plan
seq
Why is the same function with a different integer parameter size faster?
Jan 05, 2022
performance
rust
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