Editorial Technical Reference

Buffer Pool Manager

This page explains how Buffer Pool Manager is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A software component within database systems that manages memory buffers for efficient data access.

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Buffer Pool Manager in a manufacturing environment
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Product Specifications

Technical details and manufacturing context for Buffer Pool Manager

Definition
The Buffer Pool Manager is a software component used in database systems to manage the buffer pool, a dedicated memory area that caches frequently accessed data pages from disk. Its primary function is to reduce disk I/O operations by serving data requests from memory whenever possible, thereby improving overall database performance. The component employs intelligent caching algorithms, page replacement policies, and concurrency control mechanisms to optimize memory usage and ensure data consistency. It is part of the Index Storage Engine and is critical for high-throughput transaction processing and analytical workloads. The buffer pool size typically ranges from 64 to 1024 MB, with page sizes from 4 to 64 KB. The component supports sustained throughput of 100–500 K IOPS, with average latency between 0.1 and 1.0 ms. Cache hit ratios are typically 90–99%, and concurrency is supported for 16–128 threads. Memory bandwidth ranges from 10 to 50 GB/s, and power consumption under full load is 5–20 W. The operating temperature range is 0–70 °C, with non-condensing relative humidity of 10–90% RH. The mean time between failures (MTBF) is 50,000–200,000 hours, and the physical footprint on a circuit board is 100–500 cm². These values are reference ranges and must be verified for the specific model and application. The component is delivered as software code, and no external standards are listed. For procurement, confirm model-specific parameters and compliance with the legal manufacturer or supplier.
Working Principle
The Buffer Pool Manager maintains a pool of memory buffers that store copies of database pages. When a page is requested, it first checks the buffer pool. If present (cache hit), it returns the page from memory. If not (cache miss), it reads from disk, stores it in the buffer pool using replacement algorithms like LRU or Clock, and manages dirty page write-back to disk. It handles page locking and pinning for transactions, ensuring data consistency. The component optimizes performance by balancing memory usage and disk I/O.
Common Materials
Software Code
Technical Parameters
ParameterTypical rangeNotes & selection driver
Buffer Pool Size64–1024 MBDetermines memory footprint and cache capacity.
Page Size4–64 KBAffects I/O efficiency and memory overhead.
Throughput100–500 K IOPSSustained read/write operations per second.
Latency0.1–1.0 msAverage time to access a page in the pool.
Cache Hit Ratio90–99 %Percentage of requests served from buffer.
Concurrency16–128 threadsNumber of concurrent access threads supported.
Memory Bandwidth10–50 GB/sData transfer rate between buffer and CPU.
Power Consumption5–20 WTypical power draw under full load.
Operating Temperature0–70 °CAmbient temperature range for reliable operation.
Humidity10–90 % RHNon-condensing relative humidity range.
MTBF50000–200000 hoursMean time between failures for the component.
Footprint100–500 cm²Physical area required on the circuit board.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Page Table Part
    Maps page identifiers to buffer pool locations
    Material: Data Structure
  • Free List Part
    Tracks available buffer frames
    Material: Data Structure
  • Dirty Page List Part
    Tracks modified pages needing write-back
    Material: Data Structure
  • LRU Chain Part
    Implements Least Recently Used page ordering
    Material: Data Structure
  • Memory Buffers
    The pool of frames that actually hold the cached database pages.

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: N/A (software component)
other spec: Memory capacity: 1GB to 1TB+, I/O throughput: 100MB/s to 10GB/s+
temperature: Ambient to 70°C (typical server operating range)
Media Compatibility
✓ Relational databases (e.g., PostgreSQL, MySQL) ✓ OLTP workloads ✓ In-memory caching systems
Unsuitable: Real-time embedded systems with deterministic latency requirements
Sizing Data Required
  • Total database size
  • Expected concurrent user connections
  • Available system memory (RAM)

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Cavitation
Cause: Inadequate suction pressure leading to vapor bubble formation and implosion, damaging internal surfaces and components.
Mechanical seal failure
Cause: Contamination from process fluids, misalignment, or improper installation causing leaks and reduced efficiency.
Maintenance Indicators
  • Unusual vibration or audible knocking from the pump housing
  • Visible fluid leakage around seals or casing joints
Engineering Tips
  • Ensure proper NPSH (Net Positive Suction Head) margins to prevent cavitation by maintaining adequate suction pressure
  • Implement regular alignment checks and use clean, compatible fluids to extend mechanical seal life

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Manufacturing Precision
  • Bore Diameter: +/-0.01mm
  • Surface Flatness: 0.05mm per 100mm
Quality Inspection
  • Dimensional Verification with CMM
  • Pressure Testing at 150% of Rated Capacity
Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
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Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Manufacturers of Buffer Pool Manager

Manufacturer profiles associated with Buffer Pool Manager.

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Frequently Asked Questions

What is the primary function of the Buffer Pool Manager?

It manages the buffer pool, a memory area that caches database pages to reduce disk I/O and improve data access speed.

What are typical buffer pool sizes?

The buffer pool size typically ranges from 64 to 1024 MB, depending on the system configuration and workload.

How does the Buffer Pool Manager handle cache misses?

On a cache miss, it reads the page from disk, stores it in the buffer pool using a replacement algorithm like LRU or Clock, and may write back dirty pages.

What parameters should be verified before deployment?

Verify buffer pool size, page size, throughput, latency, cache hit ratio, concurrency, memory bandwidth, power consumption, operating temperature, humidity, MTBF, and footprint with the manufacturer.

Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Related equipment

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Index Storage Engine
View system integration details

Industrial Ecosystem & Supply Chain Structure

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 12 October 2026

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