Solaris Application Programming, 1/e - Chapter 4 - Parent Directory

4.3 TOOLS THAT REPORT CURRENT SYSTEM STATUS 67
per second (swrit/s), number of forks per second (fork/s), number of execs
per second (exec/s), number of characters transferred by read (rchar/s),
and number of characters transferred by write (wchar/s).
Next is a report of file access system routines called per second. The number
of files located by inode entry (iget/s), number of file system pathname
searchs (namei/s), and number of directory block reads (dirbk/s) are
included.
TTY I/O reports stats on character I/O to the controlling terminal. This
includes raw character rate (rawch/s), processed character rate (canch/s),
output character rate (outch/s), receive rate (rcvin/s), transmit rate
(xmtin/s), and modem interrupts per second (mdmin/s).
Process, inode, file, and lock table sizes are reported as proc-sz, inod-sz,
file-sz, and lock_sz. The associated overflow (ov) fields report the overflows
that occur between samples for each table.
The number of messages and semaphores per second is reported as msg/s
and sema/s.
Paging to memory is reported as the number of page faults per second that
were satisfied by reclaiming a page from memory (atch/s), the number of
page-in requests per second (pgin/s), the number of page-ins per second
(ppgin/s), the number of copy on write page faults per second (pflt/s),
the number of page not in memory faults per second (vflt/s), and the
number of faults per second caused by software locks requiring physical I/O
(slock/s).
Paging to disk is reported as the number of requested page-outs per second
(pgout/s), the number of page-outs per second (ppgout/s), the number of
pages placed on the free list per second (pgfree/s), the number of pages
scanned per second (pgscan/s), and the percentage of igets that required a
page flush (%ufs_ipf).
Free memory is reported as the average number of pages available to user
processes (freemem), and the number of disk blocks available for swapping
(freeswap).
Kernel memory allocation is reported as a small memory pool of free memory
(sml_mem), the number of bytes allocated from the small memory pool
(alloc), and the number of requests for small memory that failed (fail).
Similar counters exist for the large pool (lg_mem, alloc, fail). The amount
of memory allocated for oversize requests is reported as ovsz_alloc, and the
number of times this failed as fail.