author | Gowtham Thommandra <Gowtham.Thommandra@Oracle.COM> |
Fri, 11 Dec 2015 03:49:26 -0800 | |
changeset 5867 | 445e2cf1c845 |
parent 252 | components/net-snmp/sun/agent/modules/healthMonitor/kr_memory.c@ee0fb1eabcbf |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. |
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* |
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* U.S. Government Rights - Commercial software. Government users are subject |
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* to the Sun Microsystems, Inc. standard license agreement and applicable |
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* provisions of the FAR and its supplements. |
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* |
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* |
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9 |
* This distribution may include materials developed by third parties. Sun, |
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* Sun Microsystems, the Sun logo and Solaris are trademarks or registered |
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* trademarks of Sun Microsystems, Inc. in the U.S. and other countries. |
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* |
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*/ |
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|
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#if 0 |
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#include <stdio.h> |
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#endif |
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#include <kstat.h> |
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#include <sys/types.h> |
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#include <sys/swap.h> |
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#include <vm/anon.h> |
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#include <unistd.h> |
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#include <string.h> |
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#define ONEMB 1048576 |
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|
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extern int first_time; |
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extern kstat_ctl_t *kc; |
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extern void initialize_everything(); |
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|
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static ulong_t page_size = 0; |
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|
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/* |
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* Return value of named statistic for given kstat_named kstat. |
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* Return 0 if named statistic is not in list. |
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*/ |
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static u_longlong_t |
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kstat_named_value(kstat_t *ksp, char *name) |
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{ |
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kstat_named_t *knp; |
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|
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if (ksp == NULL) |
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return (0); |
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|
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knp = kstat_data_lookup(ksp, name); |
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if (knp != NULL) { |
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switch (knp->data_type) { |
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case KSTAT_DATA_UINT64: |
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return (knp->value.ull); |
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case KSTAT_DATA_UINT32: |
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default: |
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return (knp->value.ul); |
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} |
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} else { |
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return (0); |
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} |
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} |
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|
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int |
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krgetmemusage (int *mem_avail, int *mem_inuse, int *mem_free) |
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{ |
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int intfactor; |
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|
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if ((first_time) || (!kc)) |
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initialize_everything(); |
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|
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if (page_size == 0) |
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page_size = sysconf(_SC_PAGESIZE); |
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|
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/* do ops differently dependent on pagesize to avoid overflow |
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* note that: pagesize & ONEMB will both be powers of 2 therefore |
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* the bigger one will be exactly divisible by the smaller |
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*/ |
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if(page_size < ONEMB){ |
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intfactor = ONEMB/page_size; |
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|
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/* The following line is commented out because the value returned is less |
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than the actual number of pages in the machine. More research has got be |
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done about what is the value that kstat returns |
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*mem_avail = kstat_named_value(ksp, "physmem") / intfactor; */ |
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|
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*mem_avail = sysconf(_SC_PHYS_PAGES) / intfactor; |
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*mem_free = sysconf(_SC_AVPHYS_PAGES) / intfactor; |
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*mem_inuse = *mem_avail - *mem_free; |
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} |
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else{ /* page_size >= ONEMB */ |
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intfactor = page_size/ONEMB; |
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/* *mem_avail = kstat_named_value(ksp, "physmem") * intfactor; */ |
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*mem_avail = sysconf(_SC_PHYS_PAGES) * intfactor; |
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*mem_free = sysconf(_SC_AVPHYS_PAGES) * intfactor; |
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*mem_inuse = *mem_avail - *mem_free; |
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} |
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return 0; |
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} |
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|
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|
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u_int convert_ticks_to_bytes(u_int input) { |
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99 |
|
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parents:
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changeset
|
100 |
static float factor = -1; |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
101 |
|
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parents:
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|
102 |
if (factor == -1) |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
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|
103 |
factor = (float)(sysconf(_SC_PAGESIZE))/1024;/* in KB */ |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
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|
104 |
return (input*(u_int)factor); |
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parents:
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|
105 |
} |
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parents:
diff
changeset
|
106 |
|
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parents:
diff
changeset
|
107 |
|
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parents:
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|
108 |
int |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
109 |
krgetswapusage (int *swap_avail, int *swap_resv, int *swap_alloc, int *swap_used, int *swap_total) |
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parents:
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|
110 |
{ |
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parents:
diff
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|
111 |
|
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
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|
112 |
struct anoninfo ai; |
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7041085 move net-snmp to userland
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parents:
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|
113 |
|
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
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|
114 |
if (swapctl(SC_AINFO, &ai) == -1) { |
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parents:
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|
115 |
/* perror("Error in swapctl ..............."); */ |
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parents:
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|
116 |
return (-1); |
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parents:
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|
117 |
} |
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parents:
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|
118 |
*swap_avail = convert_ticks_to_bytes(ai.ani_max - ai.ani_resv); |
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parents:
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|
119 |
*swap_resv = convert_ticks_to_bytes(ai.ani_resv - ai.ani_max + ai.ani_free); |
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parents:
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|
120 |
*swap_alloc = convert_ticks_to_bytes(ai.ani_max - ai.ani_free); |
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parents:
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|
121 |
*swap_used = convert_ticks_to_bytes(ai.ani_resv); |
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parents:
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|
122 |
*swap_total = (*swap_used) + (*swap_avail); |
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parents:
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|
123 |
return 0; |
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parents:
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|
124 |
} |
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parents:
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|
125 |
|
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parents:
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|
126 |
/* |
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parents:
diff
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|
127 |
* returns information about the "kmem_cache" buffer of name |
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parents:
diff
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|
128 |
* "cache_name". If the last character is an asterisk, it |
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parents:
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|
129 |
* returns the sum of the statistics over all caches that |
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parents:
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|
130 |
* match. |
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parents:
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|
131 |
*/ |
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parents:
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|
132 |
int |
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parents:
diff
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|
133 |
krgetkmemdetail (const char *cache_name, int *alloc, int *alloc_fail, int *buf_size, int *buf_avail, int *buf_total, int *buf_max) |
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parents:
diff
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|
134 |
{ |
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parents:
diff
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|
135 |
kstat_t *ksp; |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
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|
136 |
int length = 0; |
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parents:
diff
changeset
|
137 |
|
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
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|
138 |
if ((first_time) || (!kc)) |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
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|
139 |
initialize_everything(); |
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parents:
diff
changeset
|
140 |
|
ee0fb1eabcbf
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
141 |
if (cache_name[strlen(cache_name) - 1] == '*') |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
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|
142 |
length = strlen(cache_name) - 1; |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
143 |
else |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
144 |
length = 256; |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
145 |
|
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7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
146 |
*alloc = 0; |
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
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|
147 |
*alloc_fail = 0; |
ee0fb1eabcbf
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
148 |
*buf_size = 0; |
ee0fb1eabcbf
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gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
149 |
*buf_avail = 0; |
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parents:
diff
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|
150 |
*buf_total = 0; |
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parents:
diff
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|
151 |
*buf_max = 0; |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
152 |
|
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7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
153 |
for (ksp = kc->kc_chain; ksp != NULL; ksp = ksp->ks_next) { |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
154 |
if (strcmp(ksp->ks_class, "kmem_cache") != 0) |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
155 |
continue; |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
156 |
if (strncmp(ksp->ks_name, cache_name, length) != 0) |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
157 |
continue; |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
158 |
if (kstat_read(kc, ksp, NULL) == -1) |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
159 |
return -1; |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
160 |
*alloc += kstat_named_value(ksp, "alloc"); |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
161 |
*alloc_fail += kstat_named_value(ksp, "alloc_fail"); |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
162 |
*buf_size += kstat_named_value(ksp, "buf_size"); |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
163 |
*buf_avail += kstat_named_value(ksp, "buf_avail"); |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
164 |
*buf_total += kstat_named_value(ksp, "buf_total"); |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
165 |
*buf_max += kstat_named_value(ksp, "buf_max"); |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
166 |
} |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
167 |
return 0; |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
168 |
|
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
169 |
} |
ee0fb1eabcbf
7041085 move net-snmp to userland
gowtham thommandra - Sun Microsystems - Bangalore India <Gowtham.Thommandra@Sun.COM>
parents:
diff
changeset
|
170 |