Displaying 5 results from an estimated 5 matches for "pv_hash_entry".
2015 Apr 24
0
[PATCH v16 08/14] pvqspinlock: Implement simple paravirt support for the qspinlock
...6 (64-bit) or 512 (32-bit) to fully utilize a 4k page.
+ *
+ * Since we should not be holding locks from NMI context (very rare indeed) the
+ * max load factor is 0.75, which is around the point where open addressing
+ * breaks down.
+ *
+ */
+#define PV_HE_PER_LINE (SMP_CACHE_BYTES / sizeof(struct pv_hash_entry))
+#define PV_HB_MIN (PAGE_SIZE / sizeof(struct pv_hash_bucket))
+
+struct pv_hash_entry {
+ struct qspinlock *lock;
+ struct pv_node *node;
+};
+
+struct pv_hash_bucket {
+ struct pv_hash_entry ent[PV_HE_PER_LINE];
+};
+
+static struct pv_hash_bucket *pv_lock_hash;
+static unsigned int pv_lock_h...
2015 May 04
1
[PATCH v16 08/14] pvqspinlock: Implement simple paravirt support for the qspinlock
...6 (64-bit) or 512 (32-bit) to fully utilize a 4k page.
+ *
+ * Since we should not be holding locks from NMI context (very rare indeed) the
+ * max load factor is 0.75, which is around the point where open addressing
+ * breaks down.
+ *
+ */
+#define PV_HE_PER_LINE (SMP_CACHE_BYTES / sizeof(struct pv_hash_entry))
+#define PV_HE_MIN (PAGE_SIZE / sizeof(struct pv_hash_entry))
+
+struct pv_hash_entry {
+ struct qspinlock *lock;
+ struct pv_node *node;
+};
+
+static struct pv_hash_bucket *pv_lock_hash;
+static unsigned int pv_lock_hash_bits __read_mostly;
+
+/*
+ * Allocate memory for the PV qspinlock hash...
2015 May 04
1
[PATCH v16 08/14] pvqspinlock: Implement simple paravirt support for the qspinlock
...6 (64-bit) or 512 (32-bit) to fully utilize a 4k page.
+ *
+ * Since we should not be holding locks from NMI context (very rare indeed) the
+ * max load factor is 0.75, which is around the point where open addressing
+ * breaks down.
+ *
+ */
+#define PV_HE_PER_LINE (SMP_CACHE_BYTES / sizeof(struct pv_hash_entry))
+#define PV_HE_MIN (PAGE_SIZE / sizeof(struct pv_hash_entry))
+
+struct pv_hash_entry {
+ struct qspinlock *lock;
+ struct pv_node *node;
+};
+
+static struct pv_hash_bucket *pv_lock_hash;
+static unsigned int pv_lock_hash_bits __read_mostly;
+
+/*
+ * Allocate memory for the PV qspinlock hash...
2015 Apr 24
16
[PATCH v16 00/14] qspinlock: a 4-byte queue spinlock with PV support
v15->v16:
- Remove the lfsr patch and use linear probing as lfsr is not really
necessary in most cases.
- Move the paravirt PV_CALLEE_SAVE_REGS_THUNK code to an asm header.
- Add a patch to collect PV qspinlock statistics which also
supersedes the PV lock hash debug patch.
- Add PV qspinlock performance numbers.
v14->v15:
- Incorporate PeterZ's v15 qspinlock patch and improve
2015 Apr 24
16
[PATCH v16 00/14] qspinlock: a 4-byte queue spinlock with PV support
v15->v16:
- Remove the lfsr patch and use linear probing as lfsr is not really
necessary in most cases.
- Move the paravirt PV_CALLEE_SAVE_REGS_THUNK code to an asm header.
- Add a patch to collect PV qspinlock statistics which also
supersedes the PV lock hash debug patch.
- Add PV qspinlock performance numbers.
v14->v15:
- Incorporate PeterZ's v15 qspinlock patch and improve