bsd/hfs/hfs_hotfiles.c

88 	u_int32_t  temperature;
281 	 * Establish minimum temperature and maximum file size.
666 		key->temperature = HFC_MINIMUM_TEMPERATURE;
679 		key->temperature = HFC_LOOKUPTAG;
789 	u_int32_t temperature;
818 	temperature = ffp->ff_bytesread / ffp->ff_size;
819 	if (temperature < hotdata->threshold) {
829 	    (temperature > hotdata->coldest->temperature)) {
832 		entry->temperature = temperature;
859 	u_int32_t temperature;
883 	temperature = ffp->ff_bytesread / ffp->ff_size;
884 	if (temperature < hotdata->threshold)
887 	if (hotdata->coldest && (temperature >= hotdata->coldest->temperature)) {
889 		hf_delete(hotdata, VTOC(vp)->c_fileid, temperature);
945 	if (key->temperature == HFC_LOOKUPTAG)
999 		key->temperature = HFC_LOOKUPTAG;
1008 		 * Update thread entry with latest temperature.
1019 		 * Re-key entry with latest temperature.
1022 		key->temperature = data;
1035 		key->temperature = listp->hfl_hotfile[i].hf_temperature;
1191 		key->temperature = listp->hfl_hotfile[i].hf_temperature;
1212 		key->temperature = HFC_LOOKUPTAG;
1343 		if (key->temperature == HFC_LOOKUPTAG) {
1430 		savedtemp = key->temperature;
1431 		key->temperature = HFC_LOOKUPTAG;
1437 		key->temperature = savedtemp;
1555 			if (key->temperature < prev_key->temperature) {
1578 		if (prev_key->temperature == HFC_LOOKUPTAG) {
1592 		/* Age by halving the temperature (floor = 4) */
1593 		newtemp = MAX(prev_key->temperature >> 1, 4);
1594 		prev_key->temperature = newtemp;
1604 		 * Update thread entry with latest temperature.
1606 		prev_key->temperature = HFC_LOOKUPTAG;
1978 	if (searchKey->temperature == trialKey->temperature) {
1994 	} else if (searchKey->temperature > trialKey->temperature) {
2013 hf_lookup(hotfile_data_t *hotdata, u_int32_t fileid, u_int32_t temperature)
2018 	       entry->temperature != temperature &&
2021 		if (temperature > entry->temperature)
2023 		else if (temperature < entry->temperature)
2042 	u_int32_t temperature = newentry->temperature;
2052 		if (temperature > entry->temperature) {
2059 		} else if (temperature < entry->temperature) {
2122 hf_delete(hotfile_data_t *hotdata, u_int32_t fileid, u_int32_t temperature)
2130 	       entry->temperature != temperature &&
2134 		if (temperature > entry->temperature)
2136 		else if (temperature < entry->temperature)
2181 		entry->temperature = 0;
2207 		hf_delete(hotdata, entry->fileid, entry->temperature);
2231 		sortedlist->hfl_hotfile[i].hf_temperature = entry->temperature;
2236 		hf_delete(hotdata, entry->fileid, entry->temperature);
2265 		printf("hfs: temperature: % 8d, fileid %d\n", root->temperature, root->fileid);