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Cull the definitions of pageSize and pageSizeKB from CRT.c

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By storing the per-process m_resident and m_virt values in the form
htop wants to display them in (KB, not pages), we no longer need to
have definitions of pageSize and pageSizeKB in the common CRT code.

These variables were never really CRT (i.e. display) related in the
first place.  It turns out the darwin platform code doesn't need to
use these at all (the process values are extracted from the kernel
in bytes not pages) and the other platforms can each use their own
local pagesize variables, in more appropriate locations.

Some platforms were actually already doing this, so this change is
removing duplication of logic and variables there.
This commit is contained in:
Nathan Scott
2020-12-10 11:57:48 +11:00
parent db5687a355
commit 75e9f9a8d9
11 changed files with 72 additions and 61 deletions
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18
openbsd/OpenBSDProcessList.c
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@ -34,6 +34,8 @@ in the source distribution for its full text.
static long fscale;
static int pageSize;
static int pageSizeKB;
ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, uid_t userId) {
const int mib[] = { CTL_HW, HW_NCPU };
@ -58,6 +60,10 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, ui
err(1, "fscale sysctl call failed");
}
if ((pageSize = sysconf(_SC_PAGESIZE)) == -1)
err(1, "pagesize sysconf call failed");
pageSizeKB = pageSize / ONE_K;
for (int i = 0; i <= pl->cpuCount; i++) {
CPUData* d = opl->cpus + i;
d->totalTime = 1;
@ -94,8 +100,8 @@ static void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
err(1, "uvmexp sysctl call failed");
}
pl->totalMem = uvmexp.npages * CRT_pageSizeKB;
pl->usedMem = (uvmexp.npages - uvmexp.free - uvmexp.paging) * CRT_pageSizeKB;
pl->totalMem = uvmexp.npages * pageSizeKB;
pl->usedMem = (uvmexp.npages - uvmexp.free - uvmexp.paging) * pageSizeKB;
// Taken from OpenBSD systat/iostat.c, top/machine.c and uvm_sysctl(9)
const int bcache_mib[] = { CTL_VFS, VFS_GENERIC, VFS_BCACHESTAT };
@ -106,7 +112,7 @@ static void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
err(1, "cannot get vfs.bcachestat");
}
pl->cachedMem = bcstats.numbufpages * CRT_pageSizeKB;
pl->cachedMem = bcstats.numbufpages * pageSizeKB;
/*
* Copyright (c) 1994 Thorsten Lockert <tholo@sigmasoft.com>
@ -222,9 +228,9 @@ static void OpenBSDProcessList_scanProcs(OpenBSDProcessList* this) {
}
}
proc->m_virt = kproc->p_vm_dsize;
proc->m_resident = kproc->p_vm_rssize;
proc->percent_mem = (proc->m_resident * CRT_pageSizeKB) / (double)(this->super.totalMem) * 100.0;
proc->m_virt = kproc->p_vm_dsize * pageSizeKB;
proc->m_resident = kproc->p_vm_rssize * pageSizeKB;
proc->percent_mem = proc->m_resident / (double)(this->super.totalMem) * 100.0;
proc->percent_cpu = CLAMP(getpcpu(kproc), 0.0, this->super.cpuCount * 100.0);
//proc->nlwp = kproc->p_numthreads;
proc->nice = kproc->p_nice - 20;