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qmemman: when a AppVM is low on memory, allow small adjustments

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A small AppVM (say, with 100MB total) can go below prefmem, and
still not be assigned memory, because of the MIN_TOTAL_MEMORY_TRANSFER
threshold.
So, if AppVM is below prefmem, allow for smaller mem-sets.
This commit is contained in:
Rafal Wojtczuk 2010-09-10 11:35:30 +02:00
parent 555be9b857
commit 02b8e51341
1 changed files with 7 additions and 5 deletions
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12
common/meminfo-writer.c
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@ -17,7 +17,8 @@ char *parse(char *buf)
static char outbuf[4096];
int val;
int len;
int MemTotal=0, MemFree=0, Buffers=0, Cached=0, SwapTotal=0, SwapFree=0;
int MemTotal = 0, MemFree = 0, Buffers = 0, Cached = 0, SwapTotal =
0, SwapFree = 0;
unsigned long long key;
long used_mem, used_mem_diff;
int nitems = 0;
@ -54,10 +55,12 @@ char *parse(char *buf)
return NULL;
used_mem_diff = used_mem - prev_used_mem;
prev_used_mem = used_mem;
if (used_mem_diff < 0)
used_mem_diff = -used_mem_diff;
if (used_mem_diff > used_mem_change_threshold) {
if (used_mem_diff > used_mem_change_threshold
|| (used_mem > prev_used_mem && used_mem * 13 / 10 > MemTotal
&& used_mem_diff > used_mem_change_threshold/2)) {
prev_used_mem = used_mem;
sprintf(outbuf,
"MemTotal: %d kB\nMemFree: %d kB\nBuffers: %d kB\nCached: %d kB\n"
"SwapTotal: %d kB\nSwapFree: %d kB\n", MemTotal,
@ -82,8 +85,7 @@ void send_to_qmemman(struct xs_handle *xs, char *data)
}
}
int
main(int argc, char **argv)
int main(int argc, char **argv)
{
char buf[4096];
int n;