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ram: account the amount of transferred ram better 

Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Juan Quintela 2012-10-18 13:56:35 +02:00
parent 4c8ae0f60e
commit 3f7d7b0981
1 changed files with 20 additions and 14 deletions
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34
arch_init.c
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@ -265,16 +265,21 @@ uint64_t xbzrle_mig_pages_overflow(void)
return acct_info.xbzrle_overflows; return acct_info.xbzrle_overflows;
} }
static void save_block_hdr(QEMUFile *f, RAMBlock *block, ram_addr_t offset, static size_t save_block_hdr(QEMUFile *f, RAMBlock *block, ram_addr_t offset,
int cont, int flag) int cont, int flag)
{ {
qemu_put_be64(f, offset | cont | flag); size_t size;
if (!cont) {
qemu_put_byte(f, strlen(block->idstr));
qemu_put_buffer(f, (uint8_t *)block->idstr,
strlen(block->idstr));
}
qemu_put_be64(f, offset | cont | flag);
size = 8;
if (!cont) {
qemu_put_byte(f, strlen(block->idstr));
qemu_put_buffer(f, (uint8_t *)block->idstr,
strlen(block->idstr));
size += 1 + strlen(block->idstr);
}
return size;
} }
#define ENCODING_FLAG_XBZRLE 0x1 #define ENCODING_FLAG_XBZRLE 0x1
@ -321,11 +326,11 @@ static int save_xbzrle_page(QEMUFile *f, uint8_t *current_data,
} }
/* Send XBZRLE based compressed page */ /* Send XBZRLE based compressed page */
save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_XBZRLE); bytes_sent = save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_XBZRLE);
qemu_put_byte(f, ENCODING_FLAG_XBZRLE); qemu_put_byte(f, ENCODING_FLAG_XBZRLE);
qemu_put_be16(f, encoded_len); qemu_put_be16(f, encoded_len);
qemu_put_buffer(f, XBZRLE.encoded_buf, encoded_len); qemu_put_buffer(f, XBZRLE.encoded_buf, encoded_len);
bytes_sent = encoded_len + 1 + 2; bytes_sent += encoded_len + 1 + 2;
acct_info.xbzrle_pages++; acct_info.xbzrle_pages++;
acct_info.xbzrle_bytes += bytes_sent; acct_info.xbzrle_bytes += bytes_sent;
@ -457,9 +462,10 @@ static int ram_save_block(QEMUFile *f, bool last_stage)
if (is_dup_page(p)) { if (is_dup_page(p)) {
acct_info.dup_pages++; acct_info.dup_pages++;
save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_COMPRESS); bytes_sent = save_block_hdr(f, block, offset, cont,
RAM_SAVE_FLAG_COMPRESS);
qemu_put_byte(f, *p); qemu_put_byte(f, *p);
bytes_sent = 1; bytes_sent += 1;
} else if (migrate_use_xbzrle()) { } else if (migrate_use_xbzrle()) {
current_addr = block->offset + offset; current_addr = block->offset + offset;
bytes_sent = save_xbzrle_page(f, p, current_addr, block, bytes_sent = save_xbzrle_page(f, p, current_addr, block,
@ -471,9 +477,9 @@ static int ram_save_block(QEMUFile *f, bool last_stage)
/* either we didn't send yet (we may have had XBZRLE overflow) */ /* either we didn't send yet (we may have had XBZRLE overflow) */
if (bytes_sent == -1) { if (bytes_sent == -1) {
save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_PAGE); bytes_sent = save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_PAGE);
qemu_put_buffer(f, p, TARGET_PAGE_SIZE); qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
bytes_sent = TARGET_PAGE_SIZE; bytes_sent += TARGET_PAGE_SIZE;
acct_info.norm_pages++; acct_info.norm_pages++;
} }