Brocade Multi-Service IronWare Administration Guide (Supporting R05.6.00) - Manual (Page 132)

114 Multi-Service IronWare Administration Guide
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Histogram information
5
Clearing buffer historgram data
To clear the buffer histogram data, enter the following command:
Brocade(config)# clear bm histogram
Syntax: clear bm histogram
Low buffer syslogs
Syslog messages are generated when when available buffers fall below the 20, 10 and 5 percent
buffer thresholds.
SYSLOG: <14>Feb 7 10:39:58 Ni-MLX-Sys-6 System: Low buffer, Available buffer goes
Below 20%, Available Buffer (2243) on MP
SYSLOG: <12>Feb 7 10:40:40 Ni-MLX-Sys-6 System: Low buffer, Available buffer goes
Below 10%, Available Buffer (1633) on MP
SYSLOG: <9>Feb 7 10:41:11 Ni-MLX-Sys-6 System: Low buffer, Available buffer goes
Below 5%, Available Buffer (1328) on MP
SYSLOG: <10>Feb 7 10:47:34 Ni-MLX-Sys-6 System: Out of buffer, Below IPC Critical
limit (128) on MP
Displaying memory histogram information
System memory is divided into five memory pools: OS, Shared, Global, User Private and DMA. The
memory histogram keeps track of each memory allocation/deallocation request from an
application. It helps to identify memory leak and memory usage accross the task. It also monitors
the under usage condition and reports to the system. The memory histogram is recorded when
available memory goes below the threshold limit on each memory pool. The threshold limit is
defined in terms of percentage of available memory (20%, 10% or 5%).