ZFS arcstats for Solaris

Makefile.am

@@ -157,14 +157,17 @@ solaris_platform_headers = \
 	solaris/SolarisProcess.h \
 	solaris/SolarisProcessList.h \
 	solaris/SolarisCRT.h \
-	solaris/Battery.h
+	solaris/Battery.h \
+	zfs/ZfsArcMeter.h \
+	zfs/ZfsArcStats.h
 
 all_platform_headers += $(solaris_platform_headers)
 
 if HTOP_SOLARIS
 myhtopplatsources = solaris/Platform.c \
 solaris/SolarisProcess.c solaris/SolarisProcessList.c \
-solaris/SolarisCRT.c solaris/Battery.c
+solaris/SolarisCRT.c solaris/Battery.c \
+zfs/ZfsArcMeter.c zfs/ZfsArcStats.c
 
 myhtopplatheaders = $(solaris_platform_headers)
 endif

solaris/Platform.c

@@ -17,6 +17,7 @@ in the source distribution for its full text.
 #include "ClockMeter.h"
 #include "HostnameMeter.h"
 #include "UptimeMeter.h"
+#include "zfs/ZfsArcMeter.h"
 #include "SolarisProcess.h"
 #include "SolarisProcessList.h"
 
@@ -122,6 +123,7 @@ MeterClass* Platform_meterTypes[] = {
    &RightCPUsMeter_class,
    &LeftCPUs2Meter_class,
    &RightCPUs2Meter_class,
+   &ZfsArcMeter_class,
    &BlankMeter_class,
    NULL
 };
@@ -220,6 +222,23 @@ void Platform_setSwapValues(Meter* this) {
    this->values[0] = pl->usedSwap;
 }
 
+void Platform_setZfsArcValues(Meter* this) {
+   SolarisProcessList* spl = (SolarisProcessList*) this->pl;
+
+   this->total = spl->zfs.max;
+   this->values[0] = spl->zfs.MFU;
+   this->values[1] = spl->zfs.MRU;
+   this->values[2] = spl->zfs.anon;
+   this->values[3] = spl->zfs.header;
+   this->values[4] = spl->zfs.other;
+
+   // "Hide" the last value so it can
+   // only be accessed by index and is not
+   // displayed by the Bar or Graph style
+   Meter_setItems(this, 5);
+   this->values[5] = spl->zfs.size;
+}
+
 static int Platform_buildenv(void *accum, struct ps_prochandle *Phandle, uintptr_t addr, const char *str) {
    envAccum *accump = accum;
    (void) Phandle;

solaris/Platform.h

@@ -60,6 +60,8 @@ void Platform_setMemoryValues(Meter* this);
 
 void Platform_setSwapValues(Meter* this);
 
+void Platform_setZfsArcValues(Meter* this);
+
 char* Platform_getProcessEnv(pid_t pid);
 
 #endif

solaris/SolarisProcessList.c

@@ -27,6 +27,8 @@ in the source distribution for its full text.
 
 /*{
 
+#include "zfs/ZfsArcStats.h"
+
 #include <kstat.h>
 #include <sys/param.h>
 #include <sys/uio.h>
@@ -55,6 +57,7 @@ typedef struct SolarisProcessList_ {
    ProcessList super;
    kstat_ctl_t* kd;
    CPUData* cpus;
+   ZfsArcStats zfs;
 } SolarisProcessList;
 
 }*/
@@ -230,6 +233,39 @@ static inline void SolarisProcessList_scanMemoryInfo(ProcessList* pl) {
    pl->usedSwap  = pl->totalSwap - (totalfree * PAGE_SIZE_KB); 
 }
 
+static inline void SolarisProcessList_scanZfsArcstats(ProcessList* pl) {
+   SolarisProcessList* spl = (SolarisProcessList*) pl;
+   kstat_t             *arcstats = NULL;
+   int                 ksrphyserr = -1;
+   kstat_named_t       *cur_kstat = NULL;
+
+   if (spl->kd != NULL)  { arcstats   = kstat_lookup(spl->kd,"zfs",0,"arcstats"); }
+   if (arcstats != NULL) { ksrphyserr = kstat_read(spl->kd,arcstats,NULL); }
+   if (ksrphyserr != -1) {
+      cur_kstat = kstat_data_lookup( arcstats, "size" );
+      spl->zfs.size = cur_kstat->value.ui64 / 1024;
+      spl->zfs.enabled = spl->zfs.size > 0 ? 1 : 0;
+
+      cur_kstat = kstat_data_lookup( arcstats, "c_max" );
+      spl->zfs.max = cur_kstat->value.ui64 / 1024;
+
+      cur_kstat = kstat_data_lookup( arcstats, "mfu_size" );
+      spl->zfs.MFU = cur_kstat->value.ui64 / 1024;
+
+      cur_kstat = kstat_data_lookup( arcstats, "mru_size" );
+      spl->zfs.MRU = cur_kstat->value.ui64 / 1024;
+
+      cur_kstat = kstat_data_lookup( arcstats, "anon_size" );
+      spl->zfs.anon = cur_kstat->value.ui64 / 1024;
+
+      cur_kstat = kstat_data_lookup( arcstats, "hdr_size" );
+      spl->zfs.header = cur_kstat->value.ui64 / 1024;
+
+      cur_kstat = kstat_data_lookup( arcstats, "other_size" );
+      spl->zfs.other = cur_kstat->value.ui64 / 1024;
+   }
+}
+
 void ProcessList_delete(ProcessList* pl) {
    SolarisProcessList* spl = (SolarisProcessList*) pl;
    ProcessList_done(pl);
@@ -367,6 +403,7 @@ int SolarisProcessList_walkproc(psinfo_t *_psinfo, lwpsinfo_t *_lwpsinfo, void *
 void ProcessList_goThroughEntries(ProcessList* this) {
    SolarisProcessList_scanCPUTime(this);
    SolarisProcessList_scanMemoryInfo(this);
+   SolarisProcessList_scanZfsArcstats(this);
    this->kernelThreads = 1;
    proc_walk(&SolarisProcessList_walkproc, this, PR_WALK_LWP);
 }

solaris/SolarisProcessList.h

@@ -13,6 +13,8 @@ in the source distribution for its full text.
 #define MAXCMDLINE 255
 
 
+#include "zfs/ZfsArcStats.h"
+
 #include <kstat.h>
 #include <sys/param.h>
 #include <sys/uio.h>
@@ -41,6 +43,7 @@ typedef struct SolarisProcessList_ {
    ProcessList super;
    kstat_ctl_t* kd;
    CPUData* cpus;
+   ZfsArcStats zfs;
 } SolarisProcessList;