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vm stats from syscall + swap

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This commit is contained in:
Jos Dehaes 2021-10-05 12:03:48 +02:00
parent bd1050a740
commit a1c7f935e3
1 changed files with 33 additions and 22 deletions
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55
src/osx/btop_collect.cpp
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@ -18,6 +18,11 @@ tab-size = 4
#include <ifaddrs.h>
#include <libproc.h>
#include <mach/mach_host.h>
#include <mach/mach_init.h>
#include <mach/mach_types.h>
#include <mach/processor_info.h>
#include <mach/vm_statistics.h>
#include <net/if.h>
#include <netdb.h>
#include <pwd.h>
@ -236,34 +241,40 @@ namespace Mem {
if (Runner::stopping or (no_update and not current_mem.percent.at("used").empty()))
return current_mem;
auto& show_swap = Config::getB("show_swap");
auto &show_disks = Config::getB("show_disks");
auto &swap_disk = Config::getB("swap_disk");
auto &mem = current_mem;
static const bool snapped = (getenv("BTOP_SNAPPED") != NULL);
FILE *fpIn = popen("/usr/bin/vm_stat", "r");
if (fpIn) {
char buf[512];
while (fgets(buf, sizeof(buf), fpIn) != NULL) {
char *delim = ":\n.";
char *tokens = strtok(buf, delim);
while (tokens) {
char *label = tokens;
char *val = strtok(nullptr, delim);
if (strstr(label, "Pages free")) {
uint64_t f = stoull(trim(val));
mem.stats.at("available") = f * 4096;
mem.stats.at("free") = f * 4096;
mem.stats.at("cached") = 1;
mem.stats.at("used") = Shared::totalMem - (f * 4096);
}
tokens = strtok(nullptr, delim);
}
}
pclose(fpIn);
} else {
Logger::error("failed to read vm_stat");
vm_statistics p;
mach_msg_type_number_t info_size = HOST_VM_INFO_COUNT;
if (host_statistics(mach_host_self(), HOST_VM_INFO, (host_info_t)&p, &info_size) == 0) {
mem.stats.at("available") = p.free_count * Shared::pageSize;
mem.stats.at("free") = p.free_count * Shared::pageSize;
mem.stats.at("cached") = 100;
mem.stats.at("used") = ((int64_t)p.active_count + (int64_t)p.inactive_count + (int64_t)p.wire_count) * (int64_t)Shared::pageSize;
}
int mib[2] = {CTL_VM, VM_SWAPUSAGE};
struct xsw_usage swap;
size_t len = sizeof(struct xsw_usage);
if (sysctl(mib, 2, &swap, &len, NULL, 0) == 0) {
mem.stats.at("swap_total") = swap.xsu_total;
mem.stats.at("swap_free") = swap.xsu_avail;
mem.stats.at("swap_used") = swap.xsu_used;
}
if (show_swap and mem.stats.at("swap_total") > 0) {
for (const auto& name : swap_names) {
mem.percent.at(name).push_back(round((double)mem.stats.at(name) * 100 / mem.stats.at("swap_total")));
while (cmp_greater(mem.percent.at(name).size(), width * 2)) mem.percent.at(name).pop_front();
}
has_swap = true;
}
else
has_swap = false;
//? Calculate percentages
for (const auto &name : mem_names) {
mem.percent.at(name).push_back(round((double)mem.stats.at(name) * 100 / Shared::totalMem));