LeaMemMonitor Namespace Reference

Classes
struct	LeaMemMonitor::memusage
struct	LeaMemMonitor::memstat
Typedefs
typedef LeaMemMonitor::memusage	memusage_t
typedef LeaMemMonitor::memstat	memstat_t
Functions
void	FillMemStat (LeaMemMonitor::memstat_t &result)
void	PrintMemStat (const char *tag=0)
void	CalcBytes (memusage_t &usage)

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Typedef Documentation

typedef struct LeaMemMonitor::memstat LeaMemMonitor::memstat_t

Referenced by FillMemStat(), and PrintMemStat().

typedef struct LeaMemMonitor::memusage LeaMemMonitor::memusage_t

Referenced by CalcBytes().

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Function Documentation

void LeaMemMonitor::CalcBytes (  memusage_t &  usage  )

Definition at line 122 of file LeaMemMonitor.cxx. References memusage_t, MSG, LeaMemMonitor::memusage::mu_size, LeaMemMonitor::memusage::mu_sizeu, LeaMemMonitor::memusage::mu_sizex, and usage(). Referenced by FillMemStat(). { switch (usage.mu_sizeu) { case 'k': case 'K': usage.mu_size = 1024 * usage.mu_sizex; break; case 'm': case 'M': usage.mu_size = 1024 * 1024 * usage.mu_sizex; break; default: usage.mu_size = usage.mu_sizex; MSG("Lea",Msg::kWarning) << "unit designator \"" << usage.mu_sizeu << "\" not recognized" << endl; } }

void LeaMemMonitor::FillMemStat (  LeaMemMonitor::memstat_t &  result  )

Definition at line 25 of file LeaMemMonitor.cxx. References CalcBytes(), len, memstat_t, LeaMemMonitor::memstat::ms_data, LeaMemMonitor::memstat::ms_exe, LeaMemMonitor::memstat::ms_lck, LeaMemMonitor::memstat::ms_lib, LeaMemMonitor::memstat::ms_rss, LeaMemMonitor::memstat::ms_stk, LeaMemMonitor::memstat::ms_total, MSG, LeaMemMonitor::memusage::mu_sizeu, LeaMemMonitor::memusage::mu_sizex, and PROCSTATUS. Referenced by PrintMemStat(). { // use proc pseudo-file system to determine process memory usage #ifndef linux MSG("Lea",Msg::kFatal) << "Not supported for any OS other than Linux" << endl; result.ms_total.mu_sizex = 0; // use result to avoid unused warning #else char buffer[4096+1]; int fd = open(PROCSTATUS,O_RDONLY); int len = read(fd,buffer,sizeof(buffer)-1); close(fd); buffer[len] = '\0'; // skip 9 lines so scanf can sync int nskip = 0; char *p = buffer; char *pend = buffer+len; while (p<pend) { if (*p == '\n') nskip++; p++; if (nskip == 10) break; } // interpret what should be there int nexpect = 14; int ndatum = sscanf(p,"VmSize: %u %cB \ VmLck: %u %cB \ VmRSS: %u %cB \ VmData: %u %cB \ VmStk: %u %cB \ VmExe: %u %cB \ VmLib: %u %cB", &result.ms_total.mu_sizex,&result.ms_total.mu_sizeu, &result.ms_lck.mu_sizex,&result.ms_lck.mu_sizeu, &result.ms_rss.mu_sizex,&result.ms_rss.mu_sizeu, &result.ms_data.mu_sizex,&result.ms_data.mu_sizeu, &result.ms_stk.mu_sizex,&result.ms_stk.mu_sizeu, &result.ms_exe.mu_sizex,&result.ms_exe.mu_sizeu, &result.ms_lib.mu_sizex,&result.ms_lib.mu_sizeu); if (ndatum != nexpect) MSG("Lea",Msg::kWarning) << " sscanf only returned " << ndatum << " of " << nexpect << " items " << endl; // interpret units back to bytes LeaMemMonitor::CalcBytes(result.ms_total); LeaMemMonitor::CalcBytes(result.ms_lck); LeaMemMonitor::CalcBytes(result.ms_rss); LeaMemMonitor::CalcBytes(result.ms_data); LeaMemMonitor::CalcBytes(result.ms_stk); LeaMemMonitor::CalcBytes(result.ms_exe); LeaMemMonitor::CalcBytes(result.ms_lib); #endif }

void LeaMemMonitor::PrintMemStat (  const char *  tag = 0  )

Definition at line 86 of file LeaMemMonitor.cxx. References FillMemStat(), memstat_t, LeaMemMonitor::memstat::ms_data, LeaMemMonitor::memstat::ms_exe, LeaMemMonitor::memstat::ms_lib, LeaMemMonitor::memstat::ms_rss, LeaMemMonitor::memstat::ms_stk, LeaMemMonitor::memstat::ms_total, MSG, LeaMemMonitor::memusage::mu_sizeu, and LeaMemMonitor::memusage::mu_sizex. Referenced by DemoEventDump::Ana(). { // use proc pseudo-file system to determine process memory usage // print the results #ifndef linux MSG("Lea",Msg::kFatal) << "Not supported for any OS other than Linux: " << tag << endl; #else memstat_t result; LeaMemMonitor::FillMemStat(result); /* This reasonable looking code causes gcc3.0.2 to dump core during compile (Internal error #980715). So, I replaced this with the less elegant code in the if statement... */ /* MSG("Lea",Msg::kInfo) << ( (tag) ? tag : "" ) // protect against missing tag << ( (tag) ? endl : flush ) // stats on separate line if tag given */ if (tag) MSG("Lea",Msg::kInfo) << tag << endl; MSG("Lea",Msg::kInfo) << "Memory:" << " Total " << result.ms_total.mu_sizex << result.ms_total.mu_sizeu // << ", Lck " << result.ms_lck.mu_sizex << result.ms_lck.mu_sizeu << ", RSS " << result.ms_rss.mu_sizex << result.ms_rss.mu_sizeu << ", Data " << result.ms_data.mu_sizex << result.ms_data.mu_sizeu << ", Stack " << result.ms_stk.mu_sizex << result.ms_stk.mu_sizeu << ", Exe " << result.ms_exe.mu_sizex << result.ms_exe.mu_sizeu << ", Lib " << result.ms_lib.mu_sizex << result.ms_lib.mu_sizeu << endl; #endif }

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