Performance Simulator
Configure your scenario and run performance simulation
1. Scenario Type
What are you testing?
Client Side
UI, scripts, rendering issues
Server Side
High response time, API delays
Network
Latency, packet loss, bandwidth
Database
Slow queries, locks, connections
2. Test Type
Select the type of load test
3. Users & Load Profile
Define how users will behave during the test
users
1
100,000
minutes
1 min
120 min
minutes
1 min
1440 min
Load Pattern (Ramp-up)
How users will increase over time
5K
2.5K
0
Users
0
5
10
Time (minutes)
Users
Test Summary
Review your test configuration
🖥️
Scenario Type
Database Issue
⚡
Test Type
Load Test
👥
Users
5000
⏱️
Ramp-up Duration
10 minutes
⏱️
Test Duration
30 minutes
📈
Load Pattern
Linear
🎯
Estimated Requests
~1.2M requests
🎯
Target System
Auto-detected
Estimated Test Time
⏱️ ~30 minutes
Performance Simulator
● RunningSimulating real user load and monitoring performance in real-time.
Started:
Jun 30, 2026 10:30 AM
Duration:
00:00:00
Virtual Users (Max)
5,000
Started: 0
Active Users
0
0% of max
Requests / Sec
0
↑ 12.5%
Avg. Response Time
0 ms
↑ 8.3%
Error Rate
0.00%
↓ 0.15%
Throughput
0 req/s
↑ 15.2%
Virtual Users
Expected Users
Actual Users
Ramp Up Time10 min
Sustain Time30 min
Ramp Down Time10 min
Total Duration50 min
Response Time (ms)
Avg
90th %ile
95th %ile
Avg245 ms
90th %ile520 ms
95th %ile780 ms
Throughput (req/s)
Current612.5 req/s
Average580.2 req/s
Peak912.6 req/s
Bottlenecks Detected
3 Issues| Component | Type | Impact | Response Time | Trend |
|---|
Errors Summary
Total Errors
1,254
Simulation Health
92
Healthy
- System Health Healthy
- Error Rate Low
- Response Time Optimal
- Throughput Good
- Virtual Users Good
- Database Optimal
- Network Good
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⏱️ Constant Timer
Aggregate Report
Name:
Comments:
| Label | # Samples | Average | Median | 90% Line | 95% Line | 99% Line | Min | Maximum | Error % | Throughput | Received KB/sec | Sent KB/sec |
|---|
Virtual Users (Max)5,000
Active Users0
Page Views / Min0↑ 12.8%
Avg. Page Load Time0 s↓ 8.3%
JS Errors0↓ 45.5%
Client Throughput0 req/s↑ 15.2%
Page Load Time (s)
Page Load Time Breakdown (s)
Page Views / Min
Top Pages by Load Time
| Page | Avg. Load Time | 90th %ile | 95th %ile | Trend |
|---|---|---|---|---|
| /products/search | 1.85 s | 2.95 s | 3.42 s | |
| /product/details | 1.42 s | 2.35 s | 2.91 s | |
| /checkout | 1.12 s | 1.85 s | 2.21 s | |
| /cart | 0.95 s | 1.65 s | 1.95 s | |
| /home | 0.80 s | 1.25 s | 1.55 s |
JavaScript Errors
Total Errors
12
TypeError5 (41.7%)
ReferenceError3 (25.0%)
SyntaxError2 (16.7%)
Others2 (16.6%)
Top Devices
| Device | Users | Avg. Load Time |
|---|---|---|
Desktop |
1,920 (60.0%) | 1.05 s Good |
Mobile |
1,088 (34.0%) | 1.48 s Medium |
Tablet |
192 (6.0%) | 1.32 s Medium |
BrowserChrome (64%)
LocationMumbai, IN (28%)
OSWindows (62%)
Screen Resolution1920x1080 (48%)
ConnectionWiFi (72%)
Total Requests0↑ 12.5%
Requests / Sec0
Avg. Response Time0 ms↑ 8.3%
Error Rate0.00%↓ 0.15%
CPU Usage (Avg)0%↑ 5.6%
Memory Usage (Avg)0%↑ 3.2%
Active Threads0↑ 9.4%
Response Time (ms)
Avg
90th %ile
95th %ile
Avg245 ms
90th %ile520 ms
95th %ile780 ms
Max912 ms
Requests / Sec
Average2,450
Peak2,980
Total Requests2.45 M
Server Resource Usage
CPU (%)
Memory (%)
Disk (%)
CPU (Avg)62%
Memory (Avg)68%
Disk (Avg)45%
Top Endpoints by Response Time
| Endpoint | Avg. Response Time | 90th %ile | 95th %ile | Requests |
|---|---|---|---|---|
| /api/products/search | 1,245 ms | 2,450 ms | 3,120 ms | 320,450 |
| /api/checkout | 680 ms | 1,250 ms | 1,950 ms | 210,340 |
| /api/cart | 520 ms | 950 ms | 1,480 ms | 180,220 |
| /api/user/profile | 450 ms | 820 ms | 1,250 ms | 150,110 |
| /api/categories | 410 ms | 760 ms | 1,150 ms | 120,330 |
Top Errors
| Error | Count | % Errors | Trend |
|---|---|---|---|
| HTTP 500 | 500 | 39.8% | |
| Timeout | 320 | 25.5% | |
| HTTP 404 | 250 | 19.9% | |
| Bad Gateway (502) | 184 | 14.7% |
Active Threads
Current1,250
Peak1,680
Average1,120
Serverapp-server-01
EnvironmentProduction
LocationMumbai, IN
JVM Uptime0h 0m 0s
Java Version17.0.8
OSLinux 5.15
Load Generator3 Agents
Apdex Score0.92Excellent
Transactions / Sec0↑ 12.6%
Avg. Response Time0 ms↑ 8.3%
95th %ile Response Time0 ms↑ 5.2%
Error Rate0.00%↓ 0.15%
Throughput0 req/s↑ 15.2%
Response Time Over Time (ms)
Avg
90th %ile
95th %ile
Avg245 ms
90th %ile520 ms
95th %ile780 ms
Transactions / Sec
Average1,850
Peak2,980
Total Transactions2.63 M
Top Transactions by Response Time (95th %ile)
| Transaction | Avg (ms) | 95th %ile (ms) | Trend |
|---|---|---|---|
| Checkout - Place Order | 180 | 820 | |
| Product Search | 120 | 610 | |
| Add to Cart | 110 | 480 | |
| User Login | 95 | 350 | |
| Get Product Details | 85 | 300 |
Transaction Breakdown
Transaction Type% Total
Page Load
38.5%API Calls
32.2%Database Calls
18.7%External Services
7.6%Others
3.0%Slowest Transactions
| Transaction | Avg (ms) | 95th %ile (ms) | Impact |
|---|---|---|---|
| Checkout - Payment | 250 | 1,250 | High |
| Generate Invoice | 220 | 1,020 | High |
| Order Confirmation Email | 180 | 780 | Medium |
| Inventory Update | 140 | 620 | Medium |
| User Registration | 120 | 480 | Low |
Application Health
92
Healthy
Response Time
GoodError Rate
GoodApdex Score
ExcellentThroughput
GoodTransaction Success
GoodExternal Services
GoodApplicationE-Commerce App
EnvironmentProduction
Versionv2.4.1
Instances5
Uptime0h 0m 0s
Last DeployedMay 12, 2024 08:15 AM
Health Status
Healthy
Total Queries128,450↑ 14.2%
Queries / Sec0↑ 12.6%
Avg. Query Time0 ms↓ 8.3%
Slow Queries (>200ms)320↑ 5.6%
Failed Queries12↓ 14.3%
DB Connections245 / 50049% Used
Database Response Time (ms)
Avg
90th %ile
95th %ile
Avg45 ms
90th %ile85 ms
95th %ile120 ms
Max245 ms
Queries Per Second
Average2,450
Peak3,980
Min980
Total Queries128,450
Database Connections
Active Connections
Max Connections
Current245
Max500
Usage49%
Top Queries by Total Time
| Query | Count | Total Time | Avg Time | % Total |
|---|---|---|---|---|
| SELECT * FROM products WHERE... | 18,450 | 12.45 s | 0.67 ms | 18.2% |
| SELECT * FROM orders WHERE... | 15,320 | 8.92 s | 0.58 ms | 13.1% |
| INSERT INTO cart (user_id, ...) | 12,890 | 6.78 s | 0.52 ms | 9.9% |
| UPDATE sessions SET last_seen... | 9,450 | 4.12 s | 0.43 ms | 6.0% |
| SELECT * FROM users WHERE... | 8,230 | 3.89 s | 0.47 ms | 5.7% |
Slow Queries ( > 200ms)
| Query | Count | Avg Time | Max Time | Impact |
|---|---|---|---|---|
| SELECT * FROM reports WHERE... | 320 | 520 ms | 1.25 s | High |
| SELECT * FROM analytics WHERE... | 210 | 410 ms | 980 ms | High |
| SELECT * FROM transactions WHERE... | 150 | 350 ms | 780 ms | Medium |
| SELECT * FROM inventory WHERE... | 98 | 280 ms | 560 ms | Medium |
| SELECT * FROM logs WHERE... | 75 | 240 ms | 480 ms | Low |
Database Wait Events
Wait Event% Time
CPU
32.5%IO File Read
25.1%Lock Wait
18.7%Network
12.4%Other
11.3%DatabaseMySQL 8.0.32
Hostdb-prod-01
EnvironmentProduction
Storage Used256 GB / 1 TB
Buffer Pool Hit98.2%
Temp Tables128
Replication Lag0 ms
Last Updated: 10:45:30 AM
Live
Avg. Latency48 ms↑ 12.5%
Throughput612.5 req/s↑ 15.2%
Bandwidth In85.6 Mbps↑ 10.3%
Bandwidth Out42.3 Mbps↑ 8.7%
Packet Loss0.12%↓ 35.6%
Active Connections1,250↑ 9.4%
Network Latency Over Time (ms)
Avg
90th %ile
95th %ile
Average48 ms
90th %ile78 ms
95th %ile96 ms
Max125 ms
Network Throughput (req/s)
Current612.5 req/s
Average580.2 req/s
Peak912.6 req/s
Bandwidth Usage (Mbps)
Inbound (↓)
Outbound (↑)
Inbound (Avg)85.6 Mbps
Outbound (Avg)42.3 Mbps
Total (Avg)127.9 Mbps
Top Hosts by Latency
| Host | Avg. Latency (ms) | 90th %ile (ms) | 95th %ile (ms) | Trend |
|---|---|---|---|---|
| api.payment-gateway.com | 120 | 210 | 250 | |
| api.product-service.com | 85 | 150 | 180 | |
| cdn.static-assets.com | 60 | 110 | 130 | |
| api.user-service.com | 45 | 90 | 110 | |
| images.storage.com | 35 | 70 | 85 |
Top Endpoints by Network Time
| Endpoint | Avg. Time (ms) | % of Total | Trend |
|---|---|---|---|
| /api/products/search | 145 ms | 22.5% | |
| /api/checkout | 120 ms | 18.7% | |
| /api/user/profile | 95 ms | 14.8% | |
| /api/cart | 75 ms | 11.6% | |
| /api/orders | 60 ms | 9.4% |
Network Errors
Total Errors
320
Timeout
120 (37.5%)Connection Reset
80 (25.0%)DNS Error
60 (18.8%)SSL Error
40 (12.5%)Other
20 (6.2%)Network TypeWiFi (72%)
ISPBSNL Broadband
LocationMumbai, IN
RTT (Avg)28 ms
Jitter (Avg)6 ms
DNS Time (Avg)18 ms
Last Updated: 10:45:30 AM
Live
System Flow / Sitemap
End-to-end architecture of the E-Commerce application and data flow.
1. Browser
End User
User Action
Clicks / Inputs
Clicks / Inputs
Request
HTTPS
HTTPS
Response
2. Client Side
Web / Mobile App
- HTML, CSS, JS
- API Calls (HTTPS)
- Local Storage
- Cookies / Session
HTTPS
Request
Request
Response
3. Application Side
Web Server / App Server
- Nginx 1.24.0
- Node.js 18.x
- REST API
- Business Logic
Forward
Response
4. Load Balancer
Traffic Distribution
- HAProxy 2.6
- SSL Termination
- Health Check
- Session Persistence
5. Application Servers
Multiple Instances
App Server 1
10.0.2.11
10.0.2.11
App Server 2
10.0.2.12
10.0.2.12
- Microservices
- Caching (Redis)
- File Upload
- Background Jobs
DB Query
Result Set
6. Database Layer
Data Storage
Primary DB
MySQL 8.0
10.0.3.20
MySQL 8.0
10.0.3.20
Read Replica
10.0.3.21
10.0.3.21
Flow Legend:
→ Request Flow
← Response Flow
↓ Internal Communication
HTTPS Secure Connection
TCP Database Connection
Total Components12
External Integrations4
Data Stores2
Active Connections1,250
Deployment StatusHealthy
Last Updated
May 12, 2024 10:45 AM
Application Server
Database
Cache
Network
Load Balancer
CDN
Monitoring
Environment Variables
Test Data
☷ Application Server Configuration
| Parameter | Value |
|---|---|
| Server Type | Nginx + Node.js |
| Operating System | Ubuntu 22.04 LTS |
| Instance Type | t3.large |
| vCPU | 2 |
| Memory | 8 GB |
| Disk Type | gp3 SSD |
| Disk Size | 100 GB |
| Auto Scaling | Enabled (Min: 2, Max: 6) |
| Instances | 3 (2 in Service, 1 Standby) |
| Health Check | /health |
| Deployment Type | Docker Containers |
| Container Orchestration | Kubernetes (EKS 1.28) |
| Environment | Production |
| Region | ap-south-1 (Mumbai) |
| Uptime | 15d 6h 23m |
| Last Updated | May 12, 2024 10:20 AM |
Resource Utilization (Avg.)
CPU Usage
38.6%
of 2 vCPU
Memory Usage
46.2%
of 8 GB
Disk Usage
43.1%
of 100 GB
Network I/O
85.6 Mbps
Out: 42.3 Mbps
Application Details
| Application Name | E-Commerce Web App |
| Version | v3.2.1 |
| Technology Stack | Node.js 18.x, Express.js 4.x |
| Framework | Express.js |
| Web Server | Nginx 1.24.0 |
| API Style | REST API |
| Static Content | Nginx (Static Files) |
| Session Management | Redis 7.0 |
| Logging | Winston + ELK Stack |
| Build Mode | Production |
| SSL / TLS | Enabled (TLS 1.2) |
| Domain / Host | app.example.com |
Application Endpoints (Sample)
| Endpoint | Type |
|---|---|
| /api/auth/login | POST |
| /api/products | GET |
| /api/cart | GET |
| /api/order | POST |
| /api/payment | POST |
JVM / Runtime Settings
| Node.js Version | 18.20.2 |
| Process Manager | PM2 5.3.0 |
| Cluster Mode | Enabled |
| Instances | 2 |
| Max Old Space Size | 2048 MB |
| GC Time (Avg.) | 45 ms |
| Event Loop Delay (Avg.) | 12 ms |
Connection Settings
| Max Connections | 10000 |
| Keep Alive Timeout | 75 seconds |
| Headers Timeout | 60 seconds |
| Request Timeout | 120 seconds |
| Body Size Limit | 10 MB |
| Rate Limit | 1000 req/min |
Security Settings
| SSL / TLS | Enabled |
| TLS Version | 1.2 |
| WAF | AWS WAF |
| DDoS Protection | AWS Shield |
| Authentication | JWT |
| CORS | Enabled |
| HSTS | Enabled |
Logging & Monitoring
| Application Logs | ELK Stack |
| Metrics Collection | Prometheus |
| Visualization | Grafana |
| Alerting | Alertmanager |
| Log Retention | 15 Days |
| Metrics Retention | 30 Days |
Database Cluster
| Engine | MySQL 8.0.33 |
| Architecture | Primary + 2 Replicas |
| Instance Class | db.r6g.2xlarge |
| Storage | 500 GB Provisioned IOPS |
| Multi-AZ | Enabled |
| Encryption | KMS (AES-256) |
| Auto Minor Upgrade | Enabled |
Performance Metrics
Active Connections
72.1%
1442 / 2000
Replica Lag
15ms
Max: 50ms
Pool Settings
| Max Connections | 2000 |
| Connection Timeout | 10s |
| Idle Timeout | 300s |
| Max Lifetime | 1800s |
| Query Timeout | 15s |
Redis Cluster
| Version | Redis 7.0 |
| Mode | Cluster Mode Enabled |
| Shards | 3 |
| Replicas per Shard | 2 |
| Node Type | cache.m6g.large |
| Eviction Policy | allkeys-lru |
Cache Utilization
Hit Rate
94.5%
Avg last 5m
Memory Usage
68.2%
8.7 GB / 12.8 GB
Data Settings
| Max Memory | 12.8 GB |
| Persistence | AOF (Everysec) |
| Compression | Snappy |
| Session TTL | 24h |
| Object Cache TTL | 1h |
VPC Configuration
| VPC ID | vpc-0a1b2c3d4e |
| CIDR Block | 10.0.0.0/16 |
| Region | ap-south-1 |
| Public Subnets | 3 |
| Private Subnets | 6 |
| NAT Gateways | 3 (Highly Available) |
Network Health
Packet Loss
0.01%
Extremely Low
NAT Bandwidth
3.2 Gbps
Limit: 10 Gbps
Security Groups (Inbound)
| HTTP (80) | Allow 0.0.0.0/0 |
| HTTPS (443) | Allow 0.0.0.0/0 |
| MySQL (3306) | Allow 10.0.0.0/16 |
| Redis (6379) | Allow 10.0.0.0/16 |
| SSH (22) | Deny All |
Load Balancer Settings
| Software | HAProxy 2.6 |
| Algorithm | Round Robin |
| SSL Termination | Enabled |
| HTTP/2 | Enabled |
| Stickiness | Cookie-based |
| Max Connections | 50,000 |
Traffic Metrics
Request Rate
4.5k/s
Peak: 6.2k/s
5xx Errors
0.08%
Threshold < 1%
Health Checks
| Endpoint | /api/health |
| Interval | 5s |
| Timeout | 2s |
| Healthy Threshold | 2 successes |
| Unhealthy Threshold | 3 failures |
Cloudflare Settings
| Plan | Enterprise |
| Proxy Status | Proxied (Orange Cloud) |
| Security Level | High |
| Bot Fight Mode | Enabled |
| Minify | JS, CSS, HTML |
| Brotli Compression | Enabled |
CDN Performance
Bandwidth Saved
82.3%
420 GB / 510 GB
Cache Hit Ratio
91.5%
Last 24 hours
Page Rules
| /api/* | Cache Level: Bypass |
| /assets/* | Cache TTL: 1 Month |
| /images/* | Edge Cache TTL: 7 Days |
| /admin/* | Security Level: I am under attack |
Observability Stack
| Metrics | Prometheus |
| Dashboards | Grafana 10.1 |
| Logs | Elasticsearch, FluentBit |
| Tracing | Jaeger |
| Alerting | Alertmanager + PagerDuty |
| APM | Datadog |
Monitoring Health
Target Health
99.9%
402 / 403 Scraped
Storage Used
28.4%
1.4 TB / 5 TB
Retention & Scraping
| Global Scrape Interval | 15s |
| Evaluation Interval | 15s |
| Metrics Retention | 30 Days |
| Logs Retention | 14 Days |
| Trace Sampling | 10% |
Core Settings
| NODE_ENV | production |
| PORT | 8080 |
| LOG_LEVEL | warn |
| WORKER_THREADS | 4 |
| APP_NAME | ecommerce-api |
Database & Cache (Masked)
| DB_HOST | db-cluster.us-east-1... |
| DB_USER | api_service |
| DB_PASS | ******** |
| REDIS_URL | redis://cache-cluster... |
| REDIS_PASS | ******** |
Feature Flags
| ENABLE_NEW_CHECKOUT | true |
| USE_GRAPHQL_API | false |
| BETA_UI_ENABLED | false |
| PAYMENT_GATEWAY | stripe_v2 |
| MAINTENANCE_MODE | false |
Test Users (Mock)
| User Pool Size | 100,000 Users |
| Auth Generation | Pre-generated JWTs |
| Username Format | testuser_[1-100000] |
| Password | Static (test1234) |
| Roles | 95% User, 5% Admin |
Data Profiles
| Cart Items | Avg 4.5 items per cart |
| Order Value | $10 - $5,000 |
| Search Queries | Top 500 keywords |
| Payment Details | Mock Stripe Tokens |
| Data Generation | Faker.js Integration |
Injection Settings
| Injection Rate | 100 users / sec |
| Think Time | 1s - 3s (Randomized) |
| Iteration Delay | 0ms |
| Data Reuse | False (Unique per run) |
Cache Configuration
Redis 7.0 Session and Object caching layer.
⚡
Network Configuration
VPC, Subnets, and Security Groups setup.
🌐
Load Balancer Configuration
HAProxy 2.6 traffic distribution and health checks.
⚖️
CDN Configuration
Cloudflare Edge Caching and DDoS protection.
🌍
Monitoring Configuration
Prometheus metrics and Grafana dashboards.
📈
Environment Variables
Application-level secrets and runtime variables.
🔑
Test Data Configuration
Data seeds, user credentials, and injected payloads.
💾