From 986dbfc19c6c84f5b86f345257212a1a7abb62f7 Mon Sep 17 00:00:00 2001
From: BowDown097 <btd6modsyeet@gmail.com>
Date: Fri, 24 Nov 2023 13:12:34 -0800
Subject: Linux + PCP: Add private memory size column

---
 pcp/PCPProcess.c      | 4 ++++
 pcp/PCPProcess.h      | 1 +
 pcp/PCPProcessTable.c | 1 +
 pcp/ProcessField.h    | 1 +
 4 files changed, 7 insertions(+)

(limited to 'pcp')

diff --git a/pcp/PCPProcess.c b/pcp/PCPProcess.c
index b5483476..c2929a83 100644
--- a/pcp/PCPProcess.c
+++ b/pcp/PCPProcess.c
@@ -49,6 +49,7 @@ const ProcessFieldData Process_fields[] = {
    [M_VIRT] = { .name = "M_VIRT", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, .defaultSortDesc = true, },
    [M_RESIDENT] = { .name = "M_RESIDENT", .title = "  RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, .defaultSortDesc = true, },
    [M_SHARE] = { .name = "M_SHARE", .title = "  SHR ", .description = "Size of the process's shared pages", .flags = 0, .defaultSortDesc = true, },
+   [M_PRIV] = { .name = "M_PRIV", .title = " PRIV ", .description = "The private memory size of the process - resident set size minus shared memory", .flags = 0, .defaultSortDesc = true, },
    [M_TRS] = { .name = "M_TRS", .title = " CODE ", .description = "Size of the text segment of the process", .flags = 0, .defaultSortDesc = true, },
    [M_DRS] = { .name = "M_DRS", .title = " DATA ", .description = "Size of the data segment plus stack usage of the process", .flags = 0, .defaultSortDesc = true, },
    [M_LRS] = { .name = "M_LRS", .title = "  LIB ", .description = "The library size of the process (unused since Linux 2.6; always 0)", .flags = 0, .defaultSortDesc = true, },
@@ -138,6 +139,7 @@ static void PCPProcess_rowWriteField(const Row* super, RichString* str, ProcessF
    case M_LRS: Row_printBytes(str, pp->m_lrs, coloring); return;
    case M_TRS: Row_printBytes(str, pp->m_trs, coloring); return;
    case M_SHARE: Row_printBytes(str, pp->m_share, coloring); return;
+   case M_PRIV: Row_printBytes(str, pp->m_priv, coloring); return;
    case M_PSS: Row_printKBytes(str, pp->m_pss, coloring); return;
    case M_SWAP: Row_printKBytes(str, pp->m_swap, coloring); return;
    case M_PSSWP: Row_printKBytes(str, pp->m_psswp, coloring); return;
@@ -214,6 +216,8 @@ static int PCPProcess_compareByKey(const Process* v1, const Process* v2, Process
       return SPACESHIP_NUMBER(p1->m_trs, p2->m_trs);
    case M_SHARE:
       return SPACESHIP_NUMBER(p1->m_share, p2->m_share);
+   case M_PRIV:
+      return SPACESHIP_NUMBER(p1->m_priv, p2->m_priv);
    case M_PSS:
       return SPACESHIP_NUMBER(p1->m_pss, p2->m_pss);
    case M_SWAP:
diff --git a/pcp/PCPProcess.h b/pcp/PCPProcess.h
index be33111e..c07d4ecc 100644
--- a/pcp/PCPProcess.h
+++ b/pcp/PCPProcess.h
@@ -38,6 +38,7 @@ typedef struct PCPProcess_ {
    unsigned long long int cutime;
    unsigned long long int cstime;
    long m_share;
+   long m_priv;
    long m_pss;
    long m_swap;
    long m_psswp;
diff --git a/pcp/PCPProcessTable.c b/pcp/PCPProcessTable.c
index 0355e25a..05971938 100644
--- a/pcp/PCPProcessTable.c
+++ b/pcp/PCPProcessTable.c
@@ -201,6 +201,7 @@ static void PCPProcessTable_updateMemory(PCPProcess* pp, int pid, int offset) {
    pp->super.m_virt = Metric_instance_u32(PCP_PROC_MEM_SIZE, pid, offset, 0);
    pp->super.m_resident = Metric_instance_u32(PCP_PROC_MEM_RSS, pid, offset, 0);
    pp->m_share = Metric_instance_u32(PCP_PROC_MEM_SHARE, pid, offset, 0);
+   pp->m_priv = pp->super.m_resident - pp->m_share;
    pp->m_trs = Metric_instance_u32(PCP_PROC_MEM_TEXTRS, pid, offset, 0);
    pp->m_lrs = Metric_instance_u32(PCP_PROC_MEM_LIBRS, pid, offset, 0);
    pp->m_drs = Metric_instance_u32(PCP_PROC_MEM_DATRS, pid, offset, 0);
diff --git a/pcp/ProcessField.h b/pcp/ProcessField.h
index b3ba2657..4c82e7ab 100644
--- a/pcp/ProcessField.h
+++ b/pcp/ProcessField.h
@@ -45,6 +45,7 @@ in the source distribution for its full text.
    SECATTR = 123,                \
    AUTOGROUP_ID = 127,           \
    AUTOGROUP_NICE = 128,         \
+   M_PRIV = 129,                 \
    // End of list
 
 
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