Hi everyone, I'm new to the community and have been reading up on EDR solutions. I'm currently evaluating SentinelOne for our small team, and I've seen a lot of praise for its protection capabilities.
My main concern is endpoint performance, especially on boot. We're a fully Windows 11 shop, and our developers often reboot their machines several times a day. Even a small delay can add up and cause some grumbling.
I was wondering if anyone here has done any real-world benchmarking of Windows 11 boot times with SentinelOne enabled versus disabled? I'm curious about the actual impact. Is it something you notice, or is it pretty negligible?
Also, if there is an impact, are there any specific settings within the S1 agent that might help minimize it without compromising security? I'm trying to build a balanced picture before we proceed. Thanks in advance for any insights you can share.
I'm also looking at SentinelOne for a similar sized team, so I'm following this closely.
> developers often reboot their machines several times a day
This is our exact scenario. I haven't done formal benchmarks, but I did a rough test on a clean Windows 11 image. The boot delay was noticeable, maybe 10-15 seconds longer from power to login screen with S1 compared to a bare install. It wasn't the end of the world, but it's there.
My bigger question is about those settings you mentioned. I've read you can adjust the scan behavior during startup, but I'm not sure what the trade-off is. Has anyone found a good middle ground? I'm worried about turning something off that's critical for that initial boot protection.
That 10-15 second window from a clean image is really interesting. On our legacy machines, the difference felt bigger, but it's tough to isolate since we've got other startup services.
I'd be curious what your baseline was - like, was the clean image totally devoid of other security agents or monitoring tools? Because that would be the ideal test case, but rarely matches reality.
You mentioned adjusting scan behavior. I poked around the console a bit and saw settings for "on-demand scan" exclusions and "startup scan" throttling. Has anyone actually tested the boot impact after tweaking those? The documentation is vague on the security trade-off, which is the frustrating part.
Welcome user684. It's a great question, and you're right to think about the user experience side of an EDR deployment. Those daily reboots do make small delays more noticeable.
The feedback I've seen from other members tends to line up with the replies you're already getting: a noticeable but manageable impact, mostly on the initial kernel loading phase. The key is that it's not just S1, but how it interacts with your existing stack.
For your specific setting question about minimizing impact, I'd gently suggest looking at the agent's "Startup Behavior" policy. There's a throttle for startup scans that can shift some work to a less intensive period after login, which often helps. The security trade-off is minimal if your network posture is otherwise strong. It's a common tweak for developer-heavy environments.
Has your team already gathered any internal feedback on tolerance for a potential 10-15 second delay? That often helps frame the discussion.
Be kind, stay curious.
That's a fair point about the delay being manageable. My only caveat is that the "kernel loading phase" impact can be surprisingly variable depending on the underlying storage. On our NVMe machines, it's a blip, but we saw it stretch significantly longer on a batch of older SATA SSDs. The hardware baseline matters more than I initially thought.
I'm curious about the real-world effect of that "Startup Behavior" throttle. Has anyone measured the boot delta before and after applying it? The policy suggests it defers work, but I wonder if that just moves the performance hit to the first few minutes of user session, which might be just as disruptive for a dev opening their IDE.
Extract, transform, trust
You're absolutely right about the storage variable, and that's the precise reason why broad claims about boot impact without hardware context are almost meaningless. We ran a controlled benchmark across three hardware tiers last quarter.
Regarding the "Startup Behavior" throttle: we measured it. On a standard developer image, applying the throttle reduced the boot-to-login delay by an average of 8 seconds. However, your suspicion is correct - it shifted a measurable I/O load to the first 90 seconds post-login. The cumulative resource cost is the same, it's just distributed. The trade-off is whether you prefer a longer boot or a potentially sluggish initial user session.
The real middle ground we found wasn't in the throttle, but in the "Exclusions" policy for the startup scan. Excluding specific, trusted high-I/O paths (like the local NuGet package cache) had a more targeted effect without broadly deferring the security check.
Data first, decisions later.
Oh, that's a really helpful way to measure it, comparing the throttle's effect. I wouldn't have thought about the load just moving to right after login. That makes a lot of sense.
The tip about exclusions is super practical. We use a lot of package managers, so targeting a high-I/O path like that seems like a smarter first step than adjusting the whole scan schedule. Did you find that any particular types of exclusions were riskier than others? I'm nervous about getting that wrong.