Optimizing Zabbix Performance

Reference Zabbix default configuraton, even with 128 cores and 256 GB of memory, can only handle monitoring 10-20 machines. To monitor more, configuration changes are necessary. 1. Configuration Files Add the following to the server configuration file: StartPollers=160 StartPollersUnreacheable=80 StartTrappers=20 StartPingers=100 StartDisco ...

Posted on Thu, 25 Jun 2026 16:45:24 +0000 by rd321

Algorithmic Strategy for Maximizing Single-Transaction Stock Gains

Problem Definition You are provided with a sequence of integers representing daily stock valuation records. Your objective is to execute exactly one pruchase followed by one sale at a subsequent point in time to achieve the highest possible financial gain. Return the calculated net earnings. If the market conditions do not permit a positive yie ...

Posted on Mon, 22 Jun 2026 18:03:12 +0000 by warrior rabbit

Fundamentals of AI Model Conversion and Optimization

Model conversion facilitates the transition of models between different deep learning frameworks. As deep learning technology evolves, training and inference frameworks have developed distinct specializations. Training frameworks prioritize researcher productivity and algorithmic innovation, offering features like distributed training, automati ...

Posted on Sat, 13 Jun 2026 16:44:13 +0000 by bmw57

Minimum Adjacent Swaps to Balance Bracket Sequences

A bracket string of even length consists of exactly n/2 opening [ and n/2 closing ] characters. The goal is to determine fewest number of arbitrary index swaps required to transform the string into a valid bracket sequence (one where every closing bracket has a matching opening bracket earlier in the string). Pairs of matched brackets can be t ...

Posted on Fri, 12 Jun 2026 18:11:11 +0000 by razorsedgeuk

Mastering Two-Pointer Patterns for Algorithmic Problems

283. Move Zeroes The objective is to reorganize an array such that all non-zero elements are positioned before any zeros. This operation must be performed in-place without allocating additional space for another array. Instead of using a secondary buffer, we can utilize a tracking pointer to mark the position where the next non-zero element sho ...

Posted on Thu, 11 Jun 2026 17:56:17 +0000 by coldfused

MySQL Database Architecture, Querying, and Performance Tuning

Data Definition and Schema Management Table Construction and Inspection Defining the schema involves specifying column names, data types, and constraints. Tables can be inspected using metadata commands to verify structure. Data Type Selection Choosing the correct storage type impacts efficiency and accuracy. Numeric Types Integers and decimals ...

Posted on Thu, 11 Jun 2026 17:44:32 +0000 by Grayda

Understanding the Core Principles of Dynamic Programming

Dynamic programming (DP) is an optimization paradigm that solves complex problems by decomposing them into overlapping subproblems whose solutions are cached to avoid recomputation. It relies on two key properties: optimal substructure and overlapping subprobelms. Optimal substructure means an optimal solution can be built from optimal solution ...

Posted on Wed, 10 Jun 2026 17:41:35 +0000 by aircooled57

JOISC2017 Ticket Reservation Problem Solution

Problem Statement: Given positive integers $n$, $m$, and $m$ triplets $(l_i, r_i, c_i)$, we have an array $a_{1..n}$ initialized with zeros. For each operation $i = 1, ..., m$, perform the following steps: Choose any integer $k \in [0, c_i]$. Add $k$ to all elements $a_j$ where $j \in [l_i, r_i]$. Add $c_i - k$ to all elements $a_j$ where $j \ ...

Posted on Tue, 09 Jun 2026 17:52:16 +0000 by adunphy

Maximizing Final Score in a Custom Jeopardy Game with Doubling Questions

In this problem, there are n questions with given point values and m special questions that allow doubling the current score instead of earning their base points. The goal is to arrange the order of answering all questions so that the final score is maximized. Each question i has a fixed value val[i]. Among them, m indices correspond to doublin ...

Posted on Mon, 08 Jun 2026 16:10:56 +0000 by lorddraco98

Dynamic Programming: Solving Multi-State Problems

The Massage Therapist Scheduling Problem Problem link: https://leetcode.cn/problems/the-masseuse-lcci/ A renowned massage therapist receives a continuous stream of appointment requests. Each appointment can be accepted or declined. Due to the need for rest periods between sessions, she cannot accept consecutive appointments. Given a sequence of ...

Posted on Sat, 30 May 2026 19:39:23 +0000 by stelthius