static int mib[2] = {0, 0};
long cp_time[CPUSTATES];
static long *pcpu_cp_time = NULL;
+ static int old_number_of_cpus = 0;
- pcpu_cp_time = reallocz(pcpu_cp_time, sizeof(cp_time) * number_of_cpus);
+ if(unlikely(number_of_cpus != old_number_of_cpus))
+ pcpu_cp_time = reallocz(pcpu_cp_time, sizeof(cp_time) * number_of_cpus);
if (unlikely(GETSYSCTL_WSIZE("kern.cp_times", mib, pcpu_cp_time, sizeof(cp_time) * number_of_cpus))) {
error("DISABLED: cpu.cpuXX charts");
error("DISABLED: kern.cp_times module");
RRDDIM *rd_interrupt;
RRDDIM *rd_idle;
} *all_cpu_charts = NULL;
- static int old_number_of_cpus = 0;
if(unlikely(number_of_cpus > old_number_of_cpus)) {
all_cpu_charts = reallocz(all_cpu_charts, sizeof(struct cpu_chart) * number_of_cpus);
memset(&all_cpu_charts[old_number_of_cpus], 0, sizeof(struct cpu_chart) * (number_of_cpus - old_number_of_cpus));
- old_number_of_cpus = number_of_cpus;
}
for (i = 0; i < number_of_cpus; i++) {
rrdset_done(all_cpu_charts[i].st);
}
}
+
+ old_number_of_cpus = number_of_cpus;
}
return 0;
return 1;
} else {
unsigned long nintr = 0;
+ static unsigned long old_nintr = 0;
static unsigned long *intrcnt = NULL;
unsigned long long totalintr = 0;
nintr = intrcnt_size / sizeof(u_long);
- intrcnt = reallocz(intrcnt, nintr * sizeof(u_long));
+ if (unlikely(nintr != old_nintr))
+ intrcnt = reallocz(intrcnt, nintr * sizeof(u_long));
if (unlikely(GETSYSCTL_WSIZE("hw.intrcnt", mib_hw_intrcnt, intrcnt, nintr * sizeof(u_long)))) {
error("DISABLED: system.intr chart");
error("DISABLED: system.interrupts chart");
static char *intrnames = NULL;
size = nintr * (MAXCOMLEN + 1);
- intrnames = reallocz(intrnames, size);
+ if (unlikely(nintr != old_nintr))
+ intrnames = reallocz(intrnames, size);
if (unlikely(GETSYSCTL_WSIZE("hw.intrnames", mib_hw_intrnames, intrnames, size))) {
error("DISABLED: system.intr chart");
error("DISABLED: system.interrupts chart");
rrdset_done(st_interrupts);
}
}
+
+ old_nintr = nintr;
}
return 0;
return 1;
} else {
static struct semid_kernel *ipc_sem_data = NULL;
+ static int old_semmni = 0;
- ipc_sem_data = reallocz(ipc_sem_data, sizeof(struct semid_kernel) * ipc_sem.semmni);
+ if (unlikely(ipc_sem.semmni != old_semmni)) {
+ ipc_sem_data = reallocz(ipc_sem_data, sizeof(struct semid_kernel) * ipc_sem.semmni);
+ old_semmni = ipc_sem.semmni;
+ }
if (unlikely(GETSYSCTL_WSIZE("kern.ipc.sema", mib_sema, ipc_sem_data, sizeof(struct semid_kernel) * ipc_sem.semmni))) {
error("DISABLED: system.ipc_semaphores chart");
error("DISABLED: system.ipc_semaphore_arrays chart");
return 1;
} else {
static struct shmid_kernel *ipc_shm_data = NULL;
+ static u_long old_shmmni = 0;
- ipc_shm_data = reallocz(ipc_shm_data, sizeof(struct shmid_kernel) * ipc_shm.shmmni);
+ if (unlikely(ipc_shm.shmmni != old_shmmni)) {
+ ipc_shm_data = reallocz(ipc_shm_data, sizeof(struct shmid_kernel) * ipc_shm.shmmni);
+ old_shmmni = ipc_shm.shmmni;
+ }
if (unlikely(
GETSYSCTL_WSIZE("kern.ipc.shmsegs", mib_shmsegs, ipc_shm_data, sizeof(struct shmid_kernel) * ipc_shm.shmmni))) {
error("DISABLED: system.ipc_shared_mem_segs chart");
return 1;
} else {
static struct msqid_kernel *ipc_msq_data = NULL;
+ static int old_msgmni = 0;
- ipc_msq_data = reallocz(ipc_msq_data, sizeof(struct msqid_kernel) * ipc_msq.msgmni);
+ if (unlikely(ipc_msq.msgmni != old_msgmni)) {
+ ipc_msq_data = reallocz(ipc_msq_data, sizeof(struct msqid_kernel) * ipc_msq.msgmni);
+ old_msgmni = ipc_msq.msgmni;
+ }
if (unlikely(
GETSYSCTL_WSIZE("kern.ipc.msqids", mib_msqids, ipc_msq_data, sizeof(struct msqid_kernel) * ipc_msq.msgmni))) {
error("DISABLED: system.ipc_msq_queues chart");
} else if (unlikely(GETSYSCTL_SIZE("net.isr.work", mib_work, netisr_work_size))) {
common_error = 1;
} else {
+ static size_t old_netisr_workstream_size = 0;
+
num_netisr_workstreams = netisr_workstream_size / sizeof(struct sysctl_netisr_workstream);
- netisr_workstream = reallocz(netisr_workstream, num_netisr_workstreams * sizeof(struct sysctl_netisr_workstream));
+ if (unlikely(netisr_workstream_size != old_netisr_workstream_size)) {
+ netisr_workstream = reallocz(netisr_workstream,
+ num_netisr_workstreams * sizeof(struct sysctl_netisr_workstream));
+ old_netisr_workstream_size = netisr_workstream_size;
+ }
if (unlikely(GETSYSCTL_WSIZE("net.isr.workstream", mib_workstream, netisr_workstream,
num_netisr_workstreams * sizeof(struct sysctl_netisr_workstream)))){
common_error = 1;
} else {
+ static size_t old_netisr_work_size = 0;
+
num_netisr_works = netisr_work_size / sizeof(struct sysctl_netisr_work);
- netisr_work = reallocz(netisr_work, num_netisr_works * sizeof(struct sysctl_netisr_work));
+ if (unlikely(netisr_work_size != old_netisr_work_size)) {
+ netisr_work = reallocz(netisr_work, num_netisr_works * sizeof(struct sysctl_netisr_work));
+ old_netisr_work_size = netisr_work_size;
+ }
if (unlikely(GETSYSCTL_WSIZE("net.isr.work", mib_work, netisr_work,
num_netisr_works * sizeof(struct sysctl_netisr_work)))){
common_error = 1;
} else {
unsigned long i, n;
int j;
+ static int old_number_of_cpus = 0;
- netisr_stats = reallocz(netisr_stats, (number_of_cpus + 1) * sizeof(struct netisr_stats));
+ if (unlikely(number_of_cpus != old_number_of_cpus)) {
+ netisr_stats = reallocz(netisr_stats, (number_of_cpus + 1) * sizeof(struct netisr_stats));
+ old_number_of_cpus = number_of_cpus;
+ }
memset(netisr_stats, 0, (number_of_cpus + 1) * sizeof(struct netisr_stats));
for (i = 0; i < num_netisr_workstreams; i++) {
for (n = 0; n < num_netisr_works; n++) {
} else {
static int mib_devstat[3] = {0, 0, 0};
static void *devstat_data = NULL;
+ static int old_numdevs = 0;
- devstat_data = reallocz(devstat_data, sizeof(long) + sizeof(struct devstat) * numdevs); // there is generation number before devstat structures
+ if (unlikely(numdevs != old_numdevs)) {
+ devstat_data = reallocz(devstat_data, sizeof(long) + sizeof(struct devstat) *
+ numdevs); // there is generation number before devstat structures
+ old_numdevs = numdevs;
+ }
if (unlikely(GETSYSCTL_WSIZE("kern.devstat.all", mib_devstat, devstat_data,
sizeof(long) + sizeof(struct devstat) * numdevs))) {
common_error = 1;