Sahi.com Order Execution speed - From EMS to Exchange
Mar 13 – Mar 30, 2026 · AWS Server → OMS → RMS → Exchange
Complete Order Execution Path
Physical topology · Logical systems · Network hops
Measured by this dashboardOut of scope
Measured by dashboardOut of scope
📱
Customer’s Home · Anywhere, India
Sahi App
Customer device
🌐
Internet — out of scope
⚡
AWS Cloud · Mumbai
EMS
Execution Management System
◄ dashboard starts here
🔒
EMS + Network latency to OMS
mean 4.28ms
🗄️
Physical Datacenter · Mumbai
OMS
Order Management System
➜
RMS check · same datacenter
mean 0.20ms
🛡️
Physical Datacenter · Mumbai
RMS
Risk Engine
🔒
Network latency to Exchange
mean 1.45ms
🏦
Exchange Datacenter · Mumbai
Exchange
Matching Engine
🏠
Customer’s Home
Anywhere, India
📱
Sahi App
Customer device
🌐 Internet
📍
Mumbai, India
Three separate facilities
☁️AWS CLOUD
⚡
EMS
Execution Management System
◄ dashboard starts here
EMS + Network latency
mean 4.28ms
🔒 Private Network
🏢PHYSICAL DATACENTER
🗄️
OMS
Order Management
RMS check
mean 0.20ms
🛡️
RMS
Risk Engine
Network Latency
mean 1.45ms
🔒 Private Network
🏦EXCHANGE DATACENTER
🏦
Exchange
Matching Engine
EMS to Exchange — Stage Breakdown
9.09M orders · mean values are additive · P95 shown for reference
EMS → OMS
EMS + Network latency to OMS
P955.64 ms
Mean4.28 ms
RMS Check
Risk Management System validation
P950.29 ms
Mean0.20 ms
Network Latency
Network latency to Exchange
P954.38 ms
Mean1.45 ms
Sahi EMS to Exchange
Sum of means = typical order time
P956.61 ms
Mean5.92 ms
EMS→OMS + RMS check + Network latency: 4.28 + 0.20 + 1.45 =5.92ms · P95 Sahi EMS to Exchange = 6.61ms
Cumulative Distribution — Sahi EMS to Exchange Placement Time
9,089,472 individual orders · Mar 13 – Mar 30, 2026 · all trading days combined
● 95% of all 9,089,472 orders complete within 6.61ms
Individual Order — EMS to Exchange Time (9M+ Orders)
Colour intensity = order volume per cell · Y-axis: Sahi EMS to Exchange placement time · X-axis: time of day (IST)
2.5ms
5ms
7.5ms
10ms
12.5ms
15ms
08:30
09:30
10:30
11:30
12:30
13:30
14:30
15:30
6.61
P95Time of day (IST)
Low densityHigh density
P95 EMS to Exchange Latency by Trading Day
P95 per metric per trading day
P95 EMS to Exchange Summary — All values in ms
| Date | EMS → OMS | RMS Check | Network Latency | Sahi EMS to Exchange |
|---|---|---|---|---|
| Mar 13 | 5.38 | 0.23 | 1.55 | 6.37 |
| Mar 16 | 5.04 | 0.18 | 1.50 | 6.44 |
| Mar 17 | 4.54 | 0.18 | 1.46 | 6.00 |
| Mar 18 | 5.27 | 0.21 | 1.48 | 5.95 |
| Mar 19 | 5.33 | 0.23 | 2.23 | 7.77 |
| Mar 20 | 5.66 | 0.23 | 1.02 | 6.12 |
| Mar 23 | 5.18 | 0.31 | 4.58 | 6.55 |
| Mar 24 | 6.11 | 0.32 | 4.77 | 6.68 |
| Mar 25 | 5.21 | 0.32 | 4.55 | 7.54 |
| Mar 27 | 5.59 | 0.33 | 4.20 | 6.59 |
| Mar 30 | 5.51 | 0.33 | 2.58 | 6.88 |
| Overall | 5.64 | 0.29 | 4.38 | 6.61 |
Mar 13 – Mar 30, 2026 · Excludes weekends · All times in ms · IST