What are the primary performance counters related to SQL Server in a Windows Server environment?

[ProfRon]

I remember tweaking SQL Server counters last week. You might spot them in Performance Monitor. They track how your database hums along on Windows Server.

Think about buffer hits first. I check that to see if data pulls quick from memory. You want it high, like over 90 percent, or your queries drag.

User connections pop up too. I watch how many folks link in at once. You spike there, and slowdowns creep in sneaky.

Batch requests per second tell the tale. I use it to gauge query speed bursts. You see low numbers, time to poke around code.

Lock waits drive me nuts. I monitor those to catch stalled locks. You ignore them, and transactions pile up grumpy.

Memory pages per second matters a bunch. I eyeball it for swap thrashing. You let it climb, your server sweats hard.

Log flushes keep things tidy. I track how often writes hit disk. You bottleneck there, backups turn sluggish.

Processor queue length sneaks in from system side. I pair it with SQL stats. You overload that, everything grinds.

Those counters help me tune without guesswork. You grab them easy in tools. I swear by watching trends over days.

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