Re: [squid-users] top reports twice memory as much as Total in mgr:mem

From: Kaiwang Chen <kaiwang.chen_at_gmail.com>
Date: Tue, 9 Nov 2010 12:19:54 +0800

RES grows to 14.7GB. Looks like this patch does not fix the problem...

2010/10/26 Kaiwang Chen <kaiwang.chen_at_gmail.com>:
> Currently running two instances behind round-robin load balanced DNS,
> one with the following patch(bug3068_mk2.patch with several twists to
> apply to 3.1.6), the other without. Wish to get some testification.
>
> diff -Nur squid-3.1.6.orig/src/fs/coss/store_dir_coss.cc
> squid-3.1.6/src/fs/coss/store_dir_coss.cc
> --- squid-3.1.6.orig/src/fs/coss/store_dir_coss.cc      2010-08-01
> 22:01:39.000000000 +0800
> +++ squid-3.1.6/src/fs/coss/store_dir_coss.cc   2010-10-25
> 21:56:00.816496622 +0800
> @@ -996,8 +996,8 @@
>  CossSwapDir::statfs(StoreEntry & sentry) const
>  {
>     storeAppendPrintf(&sentry, "\n");
> -    storeAppendPrintf(&sentry, "Maximum Size: %d KB\n", max_size);
> -    storeAppendPrintf(&sentry, "Current Size: %d KB\n", cur_size);
> +    storeAppendPrintf(&sentry, "Maximum Size: %lu KB\n", max_size);
> +    storeAppendPrintf(&sentry, "Current Size: %lu KB\n", cur_size);
>     storeAppendPrintf(&sentry, "Percent Used: %0.2f%%\n",
>                       100.0 * cur_size / max_size);
>     storeAppendPrintf(&sentry, "Number of object collisions: %d\n",
> (int) numcollisions);
> @@ -1095,7 +1095,7 @@
>  void
>  CossSwapDir::dump(StoreEntry &entry)const
>  {
> -    storeAppendPrintf(&entry, " %d", max_size >> 10);
> +    storeAppendPrintf(&entry, " %lu", max_size >> 10);
>     dumpOptions(&entry);
>  }
>
> diff -Nur squid-3.1.6.orig/src/fs/ufs/store_dir_ufs.cc
> squid-3.1.6/src/fs/ufs/store_dir_ufs.cc
> --- squid-3.1.6.orig/src/fs/ufs/store_dir_ufs.cc        2010-08-01
> 22:01:39.000000000 +0800
> +++ squid-3.1.6/src/fs/ufs/store_dir_ufs.cc     2010-10-25
> 22:26:58.629016115 +0800
> @@ -82,7 +82,7 @@
>
>     /* just reconfigure it */
>     if (reconfiguring) {
> -        if (size == max_size)
> +        if ((unsigned)size == max_size)
>             debugs(3, 2, "Cache dir '" << path << "' size remains
> unchanged at " << size << " KB");
>         else
>             debugs(3, 1, "Cache dir '" << path << "' size changed to
> " << size << " KB");
> @@ -314,8 +314,8 @@
>     int x;
>     storeAppendPrintf(&sentry, "First level subdirectories: %d\n", l1);
>     storeAppendPrintf(&sentry, "Second level subdirectories: %d\n", l2);
> -    storeAppendPrintf(&sentry, "Maximum Size: %d KB\n", max_size);
> -    storeAppendPrintf(&sentry, "Current Size: %d KB\n", cur_size);
> +    storeAppendPrintf(&sentry, "Maximum Size: %"PRIu64" KB\n", max_size);
> +    storeAppendPrintf(&sentry, "Current Size: %"PRIu64" KB\n", cur_size);
>     storeAppendPrintf(&sentry, "Percent Used: %0.2f%%\n",
>                       100.0 * cur_size / max_size);
>     storeAppendPrintf(&sentry, "Filemap bits in use: %d of %d (%d%%)\n",
> @@ -380,7 +380,7 @@
>     walker = repl->PurgeInit(repl, max_scan);
>
>     while (1) {
> -        if (cur_size < (int) minSize()) /* cur_size should be unsigned */
> +        if (cur_size < minSize()) /* cur_size should be unsigned */
>             break;
>
>         if (removed >= max_remove)
> @@ -1325,10 +1325,7 @@
>  void
>  UFSSwapDir::dump(StoreEntry & entry) const
>  {
> -    storeAppendPrintf(&entry, " %d %d %d",
> -                      max_size >> 10,
> -                      l1,
> -                      l2);
> +    storeAppendPrintf(&entry, " %"PRIu64" %d %d", (max_size >> 10), l1, l2);
>     dumpOptions(&entry);
>  }
>
> diff -Nur squid-3.1.6.orig/src/SquidMath.cc squid-3.1.6/src/SquidMath.cc
> --- squid-3.1.6.orig/src/SquidMath.cc   2010-08-01 22:01:38.000000000 +0800
> +++ squid-3.1.6/src/SquidMath.cc        2010-10-25 21:49:36.436913647 +0800
> @@ -7,6 +7,12 @@
>     return b ? ((int) (100.0 * a / b + 0.5)) : 0;
>  }
>
> +int64_t
> +Math::int64Percent(const int64_t a, const int64_t b)
> +{
> +    return b ? ((int64_t) (100.0 * a / b + 0.5)) : 0;
> +}
> +
>  double
>  Math::doublePercent(const double a, const double b)
>  {
> diff -Nur squid-3.1.6.orig/src/SquidMath.h squid-3.1.6/src/SquidMath.h
> --- squid-3.1.6.orig/src/SquidMath.h    2010-08-01 22:01:39.000000000 +0800
> +++ squid-3.1.6/src/SquidMath.h 2010-10-25 21:50:00.953836387 +0800
> @@ -6,6 +6,7 @@
>  {
>
>  extern int intPercent(const int a, const int b);
> +extern int64_t int64Percent(const int64_t a, const int64_t b);
>  extern double doublePercent(const double, const double);
>  extern int intAverage(const int, const int, int, const int);
>  extern double doubleAverage(const double, const double, int, const int);
> diff -Nur squid-3.1.6.orig/src/store_dir.cc squid-3.1.6/src/store_dir.cc
> --- squid-3.1.6.orig/src/store_dir.cc   2010-08-01 22:01:38.000000000 +0800
> +++ squid-3.1.6/src/store_dir.cc        2010-10-25 22:02:17.431379546 +0800
> @@ -360,13 +360,13 @@
>     storeAppendPrintf(&output, "Store Directory Statistics:\n");
>     storeAppendPrintf(&output, "Store Entries          : %lu\n",
>                       (unsigned long int)StoreEntry::inUseCount());
> -    storeAppendPrintf(&output, "Maximum Swap Size      : %8ld KB\n",
> -                      (long int) maxSize());
> +    storeAppendPrintf(&output, "Maximum Swap Size      : %"PRIu64" KB\n",
> +                      maxSize());
>     storeAppendPrintf(&output, "Current Store Swap Size: %8lu KB\n",
>                       store_swap_size);
> -    storeAppendPrintf(&output, "Current Capacity       : %d%% used,
> %d%% free\n",
> -                      Math::intPercent((int) store_swap_size, (int) maxSize()),
> -                      Math::intPercent((int) (maxSize() -
> store_swap_size), (int) maxSize()));
> +    storeAppendPrintf(&output, "Current Capacity       : %"PRId64"%%
> used, %"PRId64"%% free\n",
> +                      Math::int64Percent(store_swap_size, maxSize()),
> +                      Math::int64Percent((maxSize() -
> store_swap_size), maxSize()));
>     /* FIXME Here we should output memory statistics */
>
>     /* now the swapDir */
> @@ -374,14 +374,14 @@
>  }
>
>  /* if needed, this could be taught to cache the result */
> -size_t
> +uint64_t
>  StoreController::maxSize() const
>  {
>     /* TODO: include memory cache ? */
>     return swapDir->maxSize();
>  }
>
> -size_t
> +uint64_t
>  StoreController::minSize() const
>  {
>     /* TODO: include memory cache ? */
> @@ -827,22 +827,21 @@
>     }
>  }
>
> -size_t
> +uint64_t
>  StoreHashIndex::maxSize() const
>  {
> -    int i;
> -    size_t result = 0;
> +    uint64_t result = 0;
>
> -    for (i = 0; i < Config.cacheSwap.n_configured; i++)
> +    for (int i = 0; i < Config.cacheSwap.n_configured; i++)
>         result += store(i)->maxSize();
>
>     return result;
>  }
>
> -size_t
> +uint64_t
>  StoreHashIndex::minSize() const
>  {
> -    size_t result = 0;
> +    uint64_t result = 0;
>
>     for (int i = 0; i < Config.cacheSwap.n_configured; i++)
>         result += store(i)->minSize();
> diff -Nur squid-3.1.6.orig/src/Store.h squid-3.1.6/src/Store.h
> --- squid-3.1.6.orig/src/Store.h        2010-08-01 22:01:37.000000000 +0800
> +++ squid-3.1.6/src/Store.h     2010-10-25 21:50:57.338757239 +0800
> @@ -273,10 +273,10 @@
>      * The maximum size the store will support in normal use.
> Inaccuracy is permitted,
>      * but may throw estimates for memory etc out of whack.
>      */
> -    virtual size_t maxSize() const = 0;
> +    virtual uint64_t maxSize() const = 0;
>
>     /** The minimum size the store will shrink to via normal housekeeping */
> -    virtual size_t minSize() const = 0;
> +    virtual uint64_t minSize() const = 0;
>
>     /**
>      * Output stats to the provided store entry.
> diff -Nur squid-3.1.6.orig/src/StoreHashIndex.h squid-3.1.6/src/StoreHashIndex.h
> --- squid-3.1.6.orig/src/StoreHashIndex.h       2010-08-01
> 22:01:37.000000000 +0800
> +++ squid-3.1.6/src/StoreHashIndex.h    2010-10-25 21:51:29.130077308 +0800
> @@ -63,9 +63,9 @@
>
>     virtual void sync();
>
> -    virtual size_t maxSize() const;
> +    virtual uint64_t maxSize() const;
>
> -    virtual size_t minSize() const;
> +    virtual uint64_t minSize() const;
>
>     virtual void stat(StoreEntry&) const;
>
> diff -Nur squid-3.1.6.orig/src/SwapDir.cc squid-3.1.6/src/SwapDir.cc
> --- squid-3.1.6.orig/src/SwapDir.cc     2010-08-01 22:01:37.000000000 +0800
> +++ squid-3.1.6/src/SwapDir.cc  2010-10-25 21:52:20.474258607 +0800
> @@ -81,11 +81,10 @@
>  void
>  SwapDir::maintain() {}
>
> -size_t
> +uint64_t
>  SwapDir::minSize() const
>  {
> -    return (size_t) (((float) maxSize() *
> -                      (float) Config.Swap.lowWaterMark) / 100.0);
> +    return ((maxSize() * Config.Swap.lowWaterMark) / 100);
>  }
>
>  void
> diff -Nur squid-3.1.6.orig/src/SwapDir.h squid-3.1.6/src/SwapDir.h
> --- squid-3.1.6.orig/src/SwapDir.h      2010-08-01 22:01:39.000000000 +0800
> +++ squid-3.1.6/src/SwapDir.h   2010-10-25 21:54:22.988852379 +0800
> @@ -64,9 +64,9 @@
>
>     virtual void maintain(); /* perform regular maintenance should be
> private and self registered ... */
>
> -    virtual size_t maxSize() const;
> +    virtual uint64_t maxSize() const;
>
> -    virtual size_t minSize() const;
> +    virtual uint64_t minSize() const;
>
>     virtual void stat(StoreEntry &) const;
>
> @@ -133,9 +133,9 @@
>     virtual void get
>     (String const, STOREGETCLIENT, void * cbdata);
>
> -    virtual size_t maxSize() const { return max_size;}
> +    virtual uint64_t maxSize() const { return max_size;}
>
> -    virtual size_t minSize() const;
> +    virtual uint64_t minSize() const;
>     virtual void stat (StoreEntry &anEntry) const;
>     virtual StoreSearch *search(String const url, HttpRequest *) = 0;
>
> @@ -157,8 +157,8 @@
>     char const *theType;
>
>  public:
> -    int cur_size;
> -    int max_size;
> +    uint64_t cur_size;
> +    uint64_t max_size;
>     char *path;
>     int index;                 /* This entry's index into the swapDirs array */
>     int64_t max_objsize;
> diff -Nur squid-3.1.6.orig/src/tests/testStore.cc
> squid-3.1.6/src/tests/testStore.cc
> --- squid-3.1.6.orig/src/tests/testStore.cc     2010-08-01
> 22:01:37.000000000 +0800
> +++ squid-3.1.6/src/tests/testStore.cc  2010-10-25 22:04:12.974872739 +0800
> @@ -31,13 +31,13 @@
>  TestStore::init()
>  {}
>
> -size_t
> +uint64_t
>  TestStore::maxSize() const
>  {
>     return 3;
>  }
>
> -size_t
> +uint64_t
>  TestStore::minSize() const
>  {
>     return 1;
> diff -Nur squid-3.1.6.orig/src/tests/testStore.h
> squid-3.1.6/src/tests/testStore.h
> --- squid-3.1.6.orig/src/tests/testStore.h      2010-08-01
> 22:01:37.000000000 +0800
> +++ squid-3.1.6/src/tests/testStore.h   2010-10-25 22:04:37.135057635 +0800
> @@ -55,9 +55,9 @@
>
>     virtual void maintain() {};
>
> -    virtual size_t maxSize() const;
> +    virtual uint64_t maxSize() const;
>
> -    virtual size_t minSize() const;
> +    virtual uint64_t minSize() const;
>
>     virtual void stat(StoreEntry &) const; /* output stats to the
> provided store entry */
>
> diff -Nur squid-3.1.6.orig/src/tests/TestSwapDir.cc
> squid-3.1.6/src/tests/TestSwapDir.cc
> --- squid-3.1.6.orig/src/tests/TestSwapDir.cc   2010-08-01
> 22:01:38.000000000 +0800
> +++ squid-3.1.6/src/tests/TestSwapDir.cc        2010-10-25
> 22:02:55.766962512 +0800
> @@ -3,7 +3,7 @@
>  #include "squid.h"
>  #include "TestSwapDir.h"
>
> -size_t
> +uint64_t
>  TestSwapDir::maxSize() const
>  {
>     return 3;
> diff -Nur squid-3.1.6.orig/src/tests/TestSwapDir.h
> squid-3.1.6/src/tests/TestSwapDir.h
> --- squid-3.1.6.orig/src/tests/TestSwapDir.h    2010-08-01
> 22:01:38.000000000 +0800
> +++ squid-3.1.6/src/tests/TestSwapDir.h 2010-10-25 22:03:17.736828660 +0800
> @@ -12,7 +12,7 @@
>
>     bool statsCalled;
>
> -    virtual size_t maxSize() const;
> +    virtual uint64_t maxSize() const;
>     virtual void stat(StoreEntry &) const; /* output stats to the
> provided store entry */
>
>     virtual void reconfigure(int, char*);
>
>
>
>
> 2010/10/25 Kaiwang Chen <kaiwang.chen_at_gmail.com>:
>> Bad news.  I'm backporting it to 3.1.6 to have a try.
>>
>> kc
>>
>> 2010/10/25 Amos Jeffries <squid3_at_treenet.co.nz>:
>>> On 26/10/10 00:03, Kaiwang Chen wrote:
>>>>
>>>> The patch for bug 3068,
>>>> http://bugs.squid-cache.org/attachment.cgi?id=2291&action=diff
>>>> is not against 3.1.6?
>>>
>>> Was done on 3.1.8 or 3.HEAD. I think it should apply to either of those or
>>> the 3.1.9.
>>>
>>> Amos
>>> --
>>> Please be using
>>>  Current Stable Squid 2.7.STABLE9 or 3.1.8
>>>  Beta testers wanted for 3.2.0.2
>>>
>>
>
Received on Tue Nov 09 2010 - 04:19:55 MST

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