Memray DB Analyzer

CS2613 Programming Languages Lab Exploration Activity

Single Query

Bulk Queries

Database Stats

Memory Usage

Pi Stats (10s)

RSS vs VMS

RSS (Resident Set Size): memory currently in physical RAM for this process.

VMS (Virtual Memory Size): total virtual address space reserved by the process (includes mapped regions not all in RAM).

Rule of thumb: RSS is usually the better number for “real memory pressure” on the system.

Profiles

Latest Flamegraph

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Quick Examples

DROP TABLE IF EXISTS *
CREATE TABLE users (age int, id int PRIMARY KEY, fname str, lname str)
INSERT RANDOM USERS INTO users COUNT 1000 START_ID 1 AGE_RANGE (18, 90)
SELECT COUNT(*) FROM users
SELECT * FROM users WHERE id = 1
SHOW * FROM users
SHOW TABLES

Results

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Documentation PDFs

Open project markdown files as formatted PDFs.