cpu_ticks
bigint
Current CPU tick count. CPU ticks are obtained from the processor's RDTSC counter. It is a monotonically increasing number.
ms_ticks
bigint
Number of milliseconds since the computer was started.
cpu_count
int
Number of logical CPUs on the system.
hyperthread_ratio
int
Ratio of the number of logical or physical cores that are exposed by one physical processor package.
physical_memory_in_bytes
bigint
Amount of physical memory available.
virtual_memory_in_bytes
bigint
Amount of virtual memory available to the process in user mode. This can be used to determine whether SQL Server was started by using a 3-GB switch.
bpool_committed
int
Number of 8-KB buffers in the buffer pool. This amount represents committed physical memory in the buffer pool. Does not include reserved memory in the buffer pool.
bpool_commit_target
int
Number of 8-KB buffers needed by the buffer pool. The target amount is calculated using a variety of inputs such as the current state of the system, including its load, the memory requested by current processes, the amount of memory installed on the computer, and configuration parameters. If the bpool_commit_target is larger than the bpool_committed value, the buffer pool will try to obtain additional memory. If the bpool_commit_target is smaller than the bpool_committed value, the buffer pool will shrink.
bpool_visible
int
Number of 8-KB buffers in the buffer pool that are directly accessible in the process virtual address space. When not using the Address Windowing Extensions (AWE), when the buffer pool has obtained its memory target (bpool_committed = bpool_commit_target), the value of bpool_visible equals the value of bpool_committed.
When using AWE on a 32-bit version of SQL Server, bpool_visible represents the size of the AWE mapping window used to access physical memory allocated by the buffer pool. The size of this mapping window is bound by the process address space and, therefore, the visible amount will be smaller than the committed amount, and can be further reduced by internal components consuming memory for purposes other than database pages. If the value of bpool_visible is too low, you might receive out of memory errors.
stack_size_in_bytes
int
Size of the call stack for each thread created by SQL Server.
os_quantum
bigint
Quantum for a non-preemptive task, measured in milliseconds. Quantum (in seconds) = os_quantum / CPU clock speed.
os_error_mode
int
Error mode for the SQL Server process.
os_priority_class
int
Specifies the priority class for the SQL Server process. Nullable.
32 = Normal (Error log will say SQL Server is starting at normal priority base (=7).)
128 = High (Error log will say SQL Server is running at high priority base. (=13).)
For more information, see priority boost Option.
max_workers_count
int
Maximum number of workers that can be created.
scheduler_count
int
Number of user schedulers configured in the SQL Server process.
scheduler_total_count
int
Total number of schedulers in SQL Server.
deadlock_monitor_serial_number
int
ID of the current deadlock monitor sequence.
sqlserver_start_time_ms_ticks
bigint
ms_tick number when SQL Server last started. Compare to the current ms_ticks column.
sqlserver_start_time
datetime
Date and time that SQL Server last started.
affinity_type
int
Describes the affinity type that SQL Server uses.
ValueDescription
1Manual
2Auto
affinity_type_description
varchar(60)
Describes the value in the affinity_type column. For more information, see ALTER SERVER CONFIGURATION (Transact-SQL).
ValueDescription
MANUALAffinity has been set for at least one CPU.
AUTOSQL Server moves threads between CPUs as required.
process_kernel_time_ms
bigint
Total time in milliseconds spent by all SQL Server threads in kernel mode.
NoteThis value can be larger than a single processor clock because it includes the time for all processors on the server.
process_user_time_ms
bigint
Total time in milliseconds spent by all SQL Server threads in user mode.
NoteThis value can be larger than a single processor clock because it includes the time for all processors on the server.
time_source
int
Describes the API that SQL Server is using to retrieve wall clock time.
time_source_desc
nvarchar(60)
Describes the value in the time_source column.
virtual_machine_type
int
Indicates whether SQL Server is running in a virtualized environment. Not nullable.
ValueDescription
0NONE
1HYPERVISOR
2Other
virtual_machine_type_desc
nvarchar(60)
Describes the virtual_machine_type column. Not nullable.
ValueDescription
NoneSQL Server is not running inside a virtual machine.
HYPERVISORSQL Server is running inside a hypervisor, which implies a hardware-assisted virtualization. If the instance is running on the host OS, the description will still return HYPERVISOR.
OtherSQL Server is running inside a virtual machine that does not employ hardware assistant such as Microsoft Virtual PC.
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